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Blueair 400 Series SmokeStop Filter

Blueair 400 Series SmokeStop Filter

SKU: 457-0145

Blueair 400 Series SmokeStop Filter with HEPASilent Technology is an optional filter upgrade for or replaces the filter that comes in the Blueair 403, 450E, and older 402 air purifiers. Recommended for removing heavy gases, odors and VOCs. Also removes 99.97% of airborne particles as small as 0.1 micron, even on the lowest fan speed.  Package contains one (1) filter.

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MSRP: $150.00
Sale Price: $119.99

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Works with Models:  Blueair 402, 403, 450E and Classic 405 Air Purifiers

Blueair 400 Series Optional or Replacement SmokeStop™ Filter with HEPASilent™ technology is recommended when removing smoke, fumes, and gaseous contaminants is a priority. Choose SmokeStop either as an optional filter upgrade for Blueair 402, 403, 450E and 405 HEPASilent™ air purifiers, or as a replacement for units already upgraded with SmokeStop filtration. SmokeStop is a progressive, pelletized carbon filter impregnated with a 70/30 blend of Potassium Hydroxide and Potassium Iodide to remove noxious odors and gaseous pollutants, such as carbon monoxide, tobacco smoke, ethylene oxide, ozone, and VOCs from paints, chemicals, composite wood products, and other items that release or off-gas VOCs in the home.

SmokeStop filters include Blueair's HEPASilent™ filter technology to remove 99.97% of airborne particles as small as 0.1 micron, making SmokeStop the perfect gas, odor and particle filter for those with allergies, sensitivities or health concerns. Change filter every 6 months for optimal performance.  Package contains one (1) Blueair 400 Series SmokeStop&#8482 filter with HEPASilent™ technology.


  • Optional SmokeStop™ filter upgrade or replacement for Blueair 400 Series HEPASilent™ air purifiers
  • SmokeStop™ enhanced carbon filtration progressively absorbs heavy gaseous odors, gases and VOCs
  • HEPASilent™ filtration captures 99.7% of airborne allergens and particles to 0.1 micron
  • Replace filter every 6 months
  • Fits Blueair models 402, 403 and 450E, and next generation Classic 405.

VOCs (Volatile Organic Compounds)

  • VOCs (Volatile Organic Compounds) are gases and chemicals emitted by a variety of products and objects, many of which can be found in your home. In fact, the U.S. Environmental Protection Agency (EPA) numbers these products to be in the thousands. The EPA cautions that "many VOCs are consistently higher indoors (up to 10 times higher) than outdoors."

  • The EPA warns that some VOCs "may have short and long-term adverse health effects." Examples include paints, cleaning supplies, disinfectants, cosmetics, pesticides, building materials, furnishings, hobby products – and the list goes on. Many of these products emit VOCs even when they are not in use (such as furnishings built with products containing formaldehyde).

Specifications for Blueair 402, 403, 450E and Classic 405 SmokeStop™ Filters

• SmokeStop™ technology: SmokeStop removes gaseous pollutants, such as tobacco smoke, carbon monoxide, ethylene oxide, ozone, and VOCs (volatile organic compounds), including from household paints and other chemicals
• HEPASilent™ technology: Certified efficiency 99.97% for particles down to 0.1 microns, such as dust, pollen, bacteria, virus, pet dander, mold spores and other airborne particles
• Dimensions: 21 x 10 x 3.8 in.  (521 x 250 x 95 mm)
• Weight: 4.08 lbs  (1,850 g)
• Filter type: Gradient structured filter with thermally bonded fibers containing polypropylene and polyethylene free of chemicals and binders.∗ Naturally anti-bacterial. Fiber shedding resistant.
• Pleats: 102
• Effective filter area: 38.2 sq ft  (3.55 m²)
• Basis weight: 3.40 oz/yd²  (115 g/m²)
• Media thickness: 0.028 in.  (0.70 mm)
• Carbon: Activated carbon, impregnated with a 70/30 blend of Potassium Hydroxide and Potassium Iodide
• Carbon weight: 2.21 lbs  (1,000 g)
• Minimum surface area: 950 m²/g
• Pleat separators: Non hazardous, EVA based, VOC free, UV resistant
• Recommended filter change: 6 months (4,380 hours) when used 24 hours per day

∗  Due to the 100% synthetic structure, the media is resistant to moisture so that it won't promote any microbial growth.

Filter Replacement for Blueair 400 Series Air Purifiers

  • For optimal performance replace filter every six (6) months.
  • Quick and easy filter change - just open unit, slide out old filter, then slide in new. No tools or disassembly required.
  • Please see Owner's Manual tab for full instructions on changing the filter.

Blueair 400 Series Air Purifiers

Please click below on the model number of your Blueair 400 Series air purifier to view its Owner's Manual:

Please be aware that we are not able to ship Blueair products to P.O Boxes or non-U.S. addresses, including Canada.


Rated 5.00 out of 5 based on 2 reviews.

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This is the best air cleaner/purifier that I was able to find. Have used for approximately 3 years and this product does a heck of a job. We have two dogs and many people have commented how odorless our house is, no evidence of dogs! [Product Purchased: 457-0442]
I use the Blueair filter 24/7. My allergies are showing improvement especially this time of year when they are the worst.

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