Delivery to
goods.your_address
VEVOR US EN/ USD
Select the country/region, language, and currency you prefer for shopping.
Hello, Sign in
Account & Order
Categories
Deals
Deals by Categories
Shop All Shop All Outdoors Outdoors
Appliances Appliances Automotive Automotive
Tools Tools Plumbing Plumbing
Electrical Electrical Building Materials Building Materials
Sports & Outdoors Sports & Outdoors Heating, Venting & Cooling Heating, Venting & Cooling
More Ways to Save
Bulk Savings
Bulk Savings
Clearance
Clearance
Best Sellers
Best Sellers by Categories
Shop All Shop All Outdoors Outdoors
Appliances Appliances Automotive Automotive
Tools Tools Plumbing Plumbing
Electrical Electrical Building Materials Building Materials
Sports & Outdoors Sports & Outdoors Heating, Venting & Cooling Heating, Venting & Cooling
New
New by Categories
Shop All Shop All Outdoors Outdoors
Appliances Appliances Automotive Automotive
Tools Tools Plumbing Plumbing
Electrical Electrical Building Materials Building Materials
Sports & Outdoors Sports & Outdoors Heating, Venting & Cooling Heating, Venting & Cooling
Inspiration & DIY
Inspiration
Inspiration
DIY Projects & Ideas
DIY Projects & Ideas
Find Store Near You
Member Club
Product Recall
Download VEVOR App
Get $5.00 Off $99.00+ Orders on Your First 3 App Orders
Scan the QR code to download
Home Appliances Small Kitchen Appliances Food Processing

Search for "air tight bag sealer"

Automotive
Appliances
Home Decor
Storage & Organization
45 Results
Popular
Categories
Price
Under 30
30 ~ 50
50 ~ 100
100 ~ 200
200 ~ 500
500 & Above
Customer Rating
5 stars only
4 stars and up
3 stars and up
2 stars and up
1 star and up
Special Offers
On Sale
Bulk Savings
In Stock
Pickup
Summer Sale
VEVOR Continuous Bag Band Sealing Machine, 0.24-0.47 in/6-12 mm Seal Width, Horizontal Band Sealer Machine with Digital Temperature Control, Bag Sealer for 0.02-0.8 mm Plastic Bags with Count Function
(27)
141.9
141.9
Deal after registering
Member discounted price
0% cash back at checkout.
141.9
Non-PRO Account
141.9
Save
Non-PRO Account
1.8K+ Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Air Jack, 3 Ton/6613 lbs Triple Bag Air Jack, Airbag with Six Steel Pipes, Lift Up to 17.7 inch/450 mm, 1-6 s Fast Lifting Pneumatic with Adjustable Long Handle for Car, SUV, Pickup Truck Repair
(1,108)
99.9
99.9
Deal after registering
Member discounted price
0% cash back at checkout.
99.9
Non-PRO Account
99.9
Save
Non-PRO Account
534 Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Air Jack, 3 Ton/6600 lbs Triple Bag Air Jack, Airbag Jack with Six Steel Pipes, Lift up to 17.7 inch/450 mm, 3-5 s Fast Lifting Pneumatic Jack, with Long Handles for Cars, Garages, Repair, (Red)
(1,108)
96.9
96.9
Deal after registering
Member discounted price
0% cash back at checkout.
96.9
Non-PRO Account
96.9
Save
Non-PRO Account
776 Views Recently
In Stock.
Add to Cart
Deals
VEVOR Air Portable Car Lift, 6613 lbs/3 Ton Capacity, 21.7 inch Max Height, Adjustable Portable Air Car Lift with Airbag, Support Stands, Wheel Chocks, Rubber Pads, Heavy-Duty for Sedan SUV Pickup
(4)
882.9
1169.9
Deal after registering
Member discounted price
0% cash back at checkout.
882.9
Non-PRO Account
882.9
Save
Non-PRO Account
81% Left
4.6K+ Views Recently
In Stock.
Add to Cart
VEVOR Air Portable Car Lifts 2PCS, 11023 lbs/5 Ton Capacity, 12.6 inch Max Height, Pneumatic Ramp Jacks with Airbags, Wheel Chocks, Extension Ramps, Heightened Columns, Heavy-Duty for Sedan SUV Pickup
(4)
799.9
799.9
Deal after registering
Member discounted price
0% cash back at checkout.
799.9
Non-PRO Account
799.9
Save
Non-PRO Account
5.6K+ Views Recently
In Stock.
Add to Cart
VEVOR Continuous Bag Band Sealing Machine, 0.24-0.47 in/6-12 mm Seal Width, Horizontal Band Sealer Machine with Digital Temperature Control, Stainless Steel Bag Sealer for 0.02-0.8 mm Plastic Bag Film
(27)
159.9
159.9
Deal after registering
Member discounted price
0% cash back at checkout.
159.9
Non-PRO Account
159.9
Save
Non-PRO Account
873 Views Recently
In Stock.
Add to Cart
VEVOR Continuous Bag Band Sealing Machine, 0.24-0.47 in/6-12 mm Seal Width, Horizontal Band Sealer Machine with Digital Temperature Control, Bag Sealer for 0.02-0.8 mm Plastic Bags, Inflation Function
(27)
250.9
250.9
Deal after registering
Member discounted price
0% cash back at checkout.
250.9
Non-PRO Account
250.9
Save
Non-PRO Account
1.6K+ Views Recently
In Stock.
Add to Cart
VEVOR Continuous Bag Band Sealing Machine, 0.24-0.47 in/6-12 mm Seal Width, Vertical Band Sealer Machine with Digital Temperature Control, Stainless Steel Bag Sealer for 0.02-0.8 mm Plastic Bags Films
(16)
179.9
179.9
Deal after registering
Member discounted price
0% cash back at checkout.
179.9
Non-PRO Account
179.9
Save
Non-PRO Account
1.8K+ Views Recently
In Stock.
Add to Cart
VEVOR Continuous Bag Band Sealing Machine, 0.24-0.47 in/6-12 mm Seal Width, Vertical Band Sealer Machine with Digital Temperature Control, Carbon Steel Bag Sealer for 0.02-0.8 mm Plastic Bags Films
(16)
157.9
157.9
Deal after registering
Member discounted price
0% cash back at checkout.
157.9
Non-PRO Account
157.9
Save
Non-PRO Account
713 Views Recently
In Stock.
Add to Cart
VEVOR Continuous Bag Band Sealing Machine, 0.24-0.47 in/6-12 mm Seal Width, Horizontal Band Sealer Machine with Digital Temperature Control, Carbon Steel Bag Sealer for 0.02-0.8 mm Plastic Bags Films
(27)
133.9
133.9
Deal after registering
Member discounted price
0% cash back at checkout.
133.9
Non-PRO Account
133.9
Save
Non-PRO Account
1.2K+ Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Continuous Bag Band Sealing Machine, 0.24-0.47 in Seal Width, Horizontal Band Sealer Machine with Ink Printing, Temp & Speed Adjustable, Heat Sealing Machine for 0.001-0.03 in Plastic Bags
(27)
278.9
278.9
Deal after registering
Member discounted price
0% cash back at checkout.
278.9
Non-PRO Account
278.9
Save
Non-PRO Account
1.8K+ Views Recently
In Stock.
Add to Cart
VEVOR Vacuum Sealer Machine, 90Kpa 130W Powerful Dual Pump and Dual Sealing, Dry and Moist Food Storage, Automatic and Manual Air Sealing System with Built-in Cutter, with Seal Bag and External Hose
(220)
89.9
89.9
Deal after registering
Member discounted price
0% cash back at checkout.
89.9
Non-PRO Account
89.9
Save
Non-PRO Account
172 Added to Cart
3.4K+ Views Recently
In Stock.
Add to Cart
VEVOR Vacuum Sealer Machine, 95Kpa 350W Powerful Dual Pump and Dual Sealing, Dry and Moist Food Storage, Automatic and Manual Air Sealing System with Built-in Cutter, with Seal Bag and External Hose
(220)
199.9
199.9
Deal after registering
Member discounted price
0% cash back at checkout.
199.9
Non-PRO Account
199.9
Save
Non-PRO Account
149 Added to Cart
2.8K+ Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Continuous Bag Band Sealing Machine, 0.24-0.47 in Seal Width, Vertical Band Sealer Machine with Roller Printing , Temp & Speed Adjustable, Heat Sealing Machine for 0.001-0.03 in Plastic Bags
(16)
162.9
162.9
Deal after registering
Member discounted price
0% cash back at checkout.
162.9
Non-PRO Account
162.9
Save
Non-PRO Account
1.8K+ Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Air Jack, 3 Ton/6600 lbs Triple Bag Air Jack, Airbag Jack with Six Steel Pipes, Lift up to 17.7 inch/450 mm, 3-5 s Fast Lifting Pneumatic Jack, with Side Handles for Car, Garage, Repair (White)
(1,108)
97.9
97.9
Deal after registering
Member discounted price
0% cash back at checkout.
97.9
Non-PRO Account
97.9
Save
Non-PRO Account
129 Added to Cart
3.4K+ Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Vacuum Sealer Machine, 80Kpa 120W Powerful Compact Food Sealer, 7-in-1 Multi-Functional Food Vacuum Sealer, Automatic Air Sealing System with Built-in Cutter with 10 Vacuum Bags & 1 Bag Roll
(16)
42.9
42.9
Deal after registering
Member discounted price
0% cash back at checkout.
42.9
Non-PRO Account
42.9
Save
Non-PRO Account
153 Added to Cart
1.8K+ Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Air Jack, 5 Ton/11000 lbs Triple Bag Air Jack, Airbag Jack with Six Steel Pipes, Lift up to 18.5 inch/470 mm, 3-5 s Fast Lifting Pneumatic Jack, with Adjustable Handle for Car, Garage, Repair
(1,108)
126.9
126.9
Deal after registering
Member discounted price
0% cash back at checkout.
126.9
Non-PRO Account
126.9
Save
Non-PRO Account
Extra 12% off with coupon
218 Added to Cart
4.7K+ Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Air Jack, 3 Ton/6600 lbs Triple Bag Air Jack, Airbag Jack with Six Steel Pipes, Lift up to 17.7", 3-5 s Fast Lifting Pneumatic Jack, with Adjustable Long Handle for Cars, Garages, Repair (Red)
(1,108)
98.9
98.9
Deal after registering
Member discounted price
0% cash back at checkout.
98.9
Non-PRO Account
98.9
Save
Non-PRO Account
1.0K+ Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Air Jack, 3 Ton/6600 lbs Triple Bag Air Jack, Airbag Jack with Six Steel Pipes, Lift up to 17.7", 3-5 s Fast Lifting Pneumatic Jack, with Adjustable Long Handles for Cars, Garages, Repair (Blue)
(1,108)
99.9
99.9
Deal after registering
Member discounted price
0% cash back at checkout.
99.9
Non-PRO Account
99.9
Save
Non-PRO Account
2.0K+ Views Recently
In Stock.
Add to Cart
Quick look
New
VEVOR Vacuum Storage Bags, 26 Pack Space Saver Vacuum Seal Bags for Clothing, with Pump and Charging Cable, Double Zipper Seal, Thickened PA and PE, Compression for Clothes Storage, Travel Luggage
(20)
26.9
26.9
Deal after registering
Member discounted price
0% cash back at checkout.
26.9
Non-PRO Account
26.9
Save
Non-PRO Account
238 Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Vacuum Travel Backpack, 65L, Expandable Vacuum Seal Compression Travel Backpack, with TSA-Approved Lock, Multiple Pockets Compartments, Water-Resistant Carry-On Suitcase Luggage, No Pump, Black
(29)
61.9
61.9
Deal after registering
Member discounted price
0% cash back at checkout.
61.9
Non-PRO Account
61.9
Save
Non-PRO Account
1.0K+ Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Air Jack, 5 Ton/11023 lbs Triple Bag Air Jack, Airbag with Six Steel Pipes, Lift Up to 18.3 inch/464 mm, 4-10 s Fast Lifting Pneumatic with Adjustable Long Handle for Cars, SUVs, Pickup Trucks
(1,108)
137.9
137.9
Deal after registering
Member discounted price
0% cash back at checkout.
137.9
Non-PRO Account
137.9
Save
Non-PRO Account
1.1K+ Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Vacuum Travel Backpack, 65L, Expandable Vacuum Seal Compression Travel Backpack with Pump, with TSA-Approved Lock, Airback Vacpack, Water-Resistant Carry-On Suitcase Luggage, for Business, Black
(29)
73.9
73.9
Deal after registering
Member discounted price
0% cash back at checkout.
73.9
Non-PRO Account
73.9
Save
Non-PRO Account
496 Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Pneumatic Jack, 5 Ton/11023 lbs Triple Bag Air Jack, Lifting Height 6.3-15.75 Inch, Inflatable Car Jack with Long Handle, Lifter Pneumatic Air Jack for Garage Car Lifting Repair
(1,108)
144.9
144.9
Deal after registering
Member discounted price
0% cash back at checkout.
144.9
Non-PRO Account
144.9
Save
Non-PRO Account
1.0K+ Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Air Jack, 3 Ton/6613 lbs Triple Bag Air Jack, Airbag with Six Steel Pipes, Lift Up to 17.7 inch/450 mm, 1-6 s Fast Lifting Pneumatic with Short Handles for Car, SUV, Pickup Truck Repair, Garage
(1,108)
95.9
95.9
Deal after registering
Member discounted price
0% cash back at checkout.
95.9
Non-PRO Account
95.9
Save
Non-PRO Account
250 Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Air Jack, 3 Ton/6613 lbs Triple Bag Air Jack, Airbag with Six Steel Pipes, Lift Up to 17.7 inch/450 mm, 1-6 s Fast Lifting Pneumatic with Long Handle & Rubber Pad for Cars, SUVs, Pickup Trucks
(1,108)
98.9
98.9
Deal after registering
Member discounted price
0% cash back at checkout.
98.9
Non-PRO Account
98.9
Save
Non-PRO Account
554 Views Recently
In Stock.
Add to Cart
VEVOR Air Jack, 3 Ton/6613 lbs Triple Bag Air Jack, Airbag with Support Rod, Lift Up to 18.5 inch with Heightened Column & Adjustable Handle, 1-6 s Fast Lifting Pneumatic for Car, SUV, Pickup Truck
(4)
139.9
139.9
Deal after registering
Member discounted price
0% cash back at checkout.
139.9
Non-PRO Account
139.9
Save
Non-PRO Account
998 Views Recently
In Stock.
Add to Cart
Quick look
New
VEVOR Vacuum Storage Bags, 18 Pack Space Saver Vacuum Seal Bags for Clothing, with Pump and Charging Cable, Double Zipper Seal, Thickened PA and PE, Compression for Clothes Storage, Travel Luggage
(20)
20.9
20.9
Deal after registering
Member discounted price
0% cash back at checkout.
20.9
Non-PRO Account
20.9
Save
Non-PRO Account
224 Views Recently
In Stock.
Add to Cart
VEVOR Air Jack, 6 Ton/13000 lbs, 2-5 S Pneumatic Lifting Jack with Heightened Column & Adjustable Handle, Easy-to-Lift & Space-Saving Jack with Thick Rubber Pad, Fits for Sedan, SUV, Pickup Truck
(59)
185.9
185.9
Deal after registering
Member discounted price
0% cash back at checkout.
185.9
Non-PRO Account
185.9
Save
Non-PRO Account
Extra 10% off with coupon
170 Added to Cart
3.9K+ Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Air Jack, 5 Ton/11000 lbs, 4-10 S Pneumatic Lifting Jack with Heightened Column & Adjustable Handle, Easy-to-Lift & Space-Saving Jack with Thick Rubber Pad, Fits for Sedan, SUV, Pickup Truck
(59)
159.9
159.9
Deal after registering
Member discounted price
0% cash back at checkout.
159.9
Non-PRO Account
159.9
Save
Non-PRO Account
1.4K+ Views Recently
In Stock.
Add to Cart
Quick look
New
VEVOR Vacuum Storage Bags, 16 Pack Space Saver Vacuum Seal Bags for Clothing, with Pump and Charging Cable, Double Zipper Seal, Thickened PA and PE, Compression for Clothes Storage, Travel Luggage
(20)
19.9
19.9
Deal after registering
Member discounted price
0% cash back at checkout.
19.9
Non-PRO Account
19.9
Save
Non-PRO Account
121 Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Air Jack, 3 Ton/6600 lbs Triple Bag Air Jack, Airbag Jack with Six Steel Pipes, Lift up to 17.7 inch/450 mm, 3-5 s Fast Lifting Pneumatic Jack, with Side Handles for Car, Garage, Repair (Red)
(1,108)
91.9
91.9
Deal after registering
Member discounted price
0% cash back at checkout.
91.9
Non-PRO Account
91.9
Save
Non-PRO Account
1.2K+ Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Air Jack, 6 Ton/13227 lbs Airbag Jack, Lift Up to 26.5 inch with Heightened Column, Adjustable Handle & Thick Rubber Pad, 2-5 s Fast Lifting Pneumatic for Car, SUV, Pickup Truck Repair, Garage
(59)
185.9
185.9
Deal after registering
Member discounted price
0% cash back at checkout.
185.9
Non-PRO Account
185.9
Save
Non-PRO Account
1.3K+ Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Vacuum Travel Backpack, 80L, Expandable Vacuum Seal Compression Travel Backpack with Pump, with TSA-Approved Lock, Airback Vacpack, Water-Resistant Carry-On Suitcase Luggage, for Business, Black
(29)
86.9
86.9
Deal after registering
Member discounted price
0% cash back at checkout.
86.9
Non-PRO Account
86.9
Save
Non-PRO Account
592 Views Recently
Almost sold out
Add to Cart
Quick look
VEVOR Air Jack, 3 Ton/6600 lbs, 1-6S Pneumatic Lifting Jack with Heightened Column & Adjustable Handle, Compact, Easy-to-Lift & Space-Saving Jack with Thick Rubber Pad, Fits for Sedan, SUV, Pickup Truck
(59)
105.9
105.9
Deal after registering
Member discounted price
0% cash back at checkout.
105.9
Non-PRO Account
105.9
Save
Non-PRO Account
1.0K+ Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Air Jack, 3 Ton/6600 lbs, 3-8S Pneumatic Lifting Jack with Heightened Column & 6 Steel Tubes, Compact, Easy-to-Lift & Space-Saving Jack with Thick Rubber Pad, Fits for Sedan, SUV, Pickup Truck
(59)
89.9
89.9
Deal after registering
Member discounted price
0% cash back at checkout.
89.9
Non-PRO Account
89.9
Save
Non-PRO Account
2.0K+ Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Air Jack, 3T / 6600 lbs Triple Bag Air Jack, Airbag Jack with Six Steel Pipes, Lift up to 17.7 inch/450 mm, 3-5 s Fast Lifting Pneumatic Jack, with Long Handles for Car, Garage, Repair
(1,108)
96.9
96.9
Deal after registering
Member discounted price
0% cash back at checkout.
96.9
Non-PRO Account
96.9
Save
Non-PRO Account
1.3K+ Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Front Air Shock Absorber Strut, 2 PCS, Compatible with Cadillac Escalade, Chevrolet Silverado/Suburban/Tahoe, GMC Sierra/Yukon, Replacement for 84176631 84061228 84977478 23312167 23464589
(12)
285.9
285.9
Deal after registering
Member discounted price
0% cash back at checkout.
285.9
Non-PRO Account
285.9
Save
Non-PRO Account
443 Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Air Jack, 3 Ton/6600 lbs Triple Bag Air Jack, Airbag Jack with Six Steel Pipes, Lift up to 17.7 inch/450 mm, 3-5 s Fast Lifting Pneumatic Jack, with Short Handles for Car Repair
(1,108)
96.9
96.9
Deal after registering
Member discounted price
0% cash back at checkout.
96.9
Non-PRO Account
96.9
Save
Non-PRO Account
631 Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Front Air Suspension Struts Shock Absorbers, Compatible With Mercedes Benz W164 Front Without ADS (2005-2011) GL350 GL450, Replacement for 1643204513 1643206113 1643204313 1643204413 1643204613
(12)
109.99
109.99
Deal after registering
Member discounted price
0% cash back at checkout.
109.99
Non-PRO Account
109.99
Save
Non-PRO Account
115 Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Rear Air Shock Absorber Strut, 2 PCS, Compatible with Cadillac Escalade, Chevrolet Suburban/ Tahoe, GMC Yukon/Yukon XL, Replacement for 22283446 22278958 580-1106 5801068 5801106 23151122
(12)
179.9
179.9
Deal after registering
Member discounted price
0% cash back at checkout.
179.9
Non-PRO Account
179.9
Save
Non-PRO Account
336 Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Rear Air Shock Absorber Strut, 2 PCS, Compatible with Cadillac Escalade, Chevrolet Avalanche/Silverado/Suburban/Tahoe, GMC Yukon/Yukon XL, Replacement for 25979394 25979393 25979391 25885469
(12)
89.99
89.99
Deal after registering
Member discounted price
0% cash back at checkout.
89.99
Non-PRO Account
89.99
Save
Non-PRO Account
372 Views Recently
In Stock.
Add to Cart
Quick look
VEVOR Front Air Shock Absorber Strut, 2 PCS, Compatible with Cadillac Escalade/ESV/EXT, GMC Sierra, Chevrolet Avalanche/Silverado/Suburban/Tahoe, Replacement for 19300066 22853793 19368455 19368456
(12)
262.9
262.9
Deal after registering
Member discounted price
0% cash back at checkout.
262.9
Non-PRO Account
262.9
Save
Non-PRO Account
106 Views Recently
In Stock.
Add to Cart
Quick look
2PCS 3595977C96 Cab Shock Absorber for International Prostar 2008
(1)
140.99
220.99
Deal after registering
Member discounted price
0% cash back at checkout.
140.99
Non-PRO Account
140.99
Save
Non-PRO Account
Out of Stock
View Details
Quick look
2pcs for Mercedes W164 GL350 GL450 1643206113 Front Air Suspension Spring Shock Strut
(4)
221.99
331.99
Deal after registering
Member discounted price
0% cash back at checkout.
221.99
Non-PRO Account
221.99
Save
Non-PRO Account
222 Views Recently
Out of Stock
View Details
Related searches
car repair near me two car garage lift car garage. car lift in garage car garages by best garage car lift car lift for garage used car lift for garage car lifts for your garage air bag garage jacks -diffusers--air-diffuser-waterless garage car lift garage car jacks two car garage with lift my cars garage
See more
VEVOR Air Jack, 6 Ton/13000 lbs, 2-5 S Pneumatic Lifting Jack with Heightened Column & Adjustable Handle, Easy-to-Lift & Space-Saving Jack with Thick Rubber Pad, Fits for Sedan, SUV, Pickup Truck
In Stock.
Add to Cart
1
You May Also Like
Today's Deals For You
Recently Viewed
Tips & Inspiration
Recommended Searches
plastic food storage containers food storage container set ceramic food containers food storage containers for pantry nesting food storage containers airbag for air pipe steel pipe repair triple airbag lift airbags to lift 5 ton airbag jacks airbags to lift cars -the-air-compressors air -diffuser-essential-air-diffuser air piping triple airbags pipe jacks airbags lift down pipe car -diffusers-essential-air-diffusers