How to make an air filter for smoke?

Author: Caden Bradtke  |  Last update: Friday, April 17, 2026

Wildfire smoke getting into your home? Build a DIY Corsi-Rosenthal air filter.
  1. Step 1: Get your supplies.
  2. Step 2: Duct tape the filters together to form the sides of a cube.
  3. Step 3: Cut a square of cardboard and tape it to the bottom of the filter cube.
  4. Step 5: Tape the box fan to the top of the filter cube.

How to filter smoke from air DIY?

One easy and affordable way to make your own air cleaner at home is with a box fan and a furnace filter. These “filter fans” can filter out the small particles that are common in wildfire or wood smoke.

What can you use as a smoke filter?

Do-It-Yourself (DIY) air cleaners, made with a box fan and MERV 13 air filter, are a cost-effective method for reducing smoke concentrations. Only use newer, certified box fans with added safety features (2012 models or newer).

What material can filter smoke?

Activated carbon is a highly porous material that has a large surface area that can trap smoke and other odors with high efficacy. The carbon filter in the IQAir HealthPro Series contains small pellets of activated carbon that absorb the smoke odor and other harmful VOCs present in the air.

Can you filter smoke out of air?

One of the most effective ways to clean smoke from indoor environments is to attach a MERV 13 furnace filter to a box fan. The Puget Sound Clean Air Agency tested this method with air monitors and found that a box fan filter reduced airborne particulate matter dramatically.

DIY Whole home air filter for smoke and pollution with carbon and HEPA filter-parts under $130

What kind of air filter for smoke?

The best air purifiers for smoke have a HEPA filter and will lower PM2. 5 levels considerably to ensure it can remove the larger particles of wildfire smoke as well as the smaller particles of cigarette or tobacco smoke. "HEPA filters… trap particles as small as 0.3 microns with 99 percent efficiency," says Podjasek.

How to purify air from smoke naturally?

The simplest thing you can do to purify air from smoke in your home is just opening windows. Letting in a cool breeze will help whisk away some of the smell and bring badly needed fresh air into the home. This can provide some immediate relief for rooms with a stronger presence of smoke in the air.

What can I use instead of a filter for smoking?

Empty Toilet Paper Roll

As a kid, you probably used it like a telescope. Now, as a smoker, you can use them to make filter tips.

What material can I use for an air filter?

Plastics, most often polypropylene, are durable and reliable materials that can be used to make filters, which are often washable. This creates both long-term affordability, as you don't have to purchase new filters, as well as an eco-friendly product, as new resources are not required.

Will a charcoal filter filter smoke?

Using charcoal as a filtering media allows your purifier to filter out gases, smoke, and odors in your home. Activated charcoal is made from many different materials, including nut shells, wood, peat, and coconut shells.

How to make a homemade smoke eliminator?

Neutralizing Smoke Odor with White Vinegar

This is why it I a great odor eliminator. To make a cleaning solution, mix one part white vinegar with three parts warm water in a spray bottle. Use your prepared cleaner on hard surfaces like countertops, floors, and walls.

What material is a smoking filter?

The basic material for the production of traditional cigarette filters is cellulose obtained from wood. This is converted into cellulose acetate with the help of a chemical process.

How to get rid of smoke in air?

If local officials advise you to stay indoors, take these actions in your home to reduce your smoke exposure:
  1. Keep windows and doors closed.
  2. Use fans and air conditioning to stay cool. ...
  3. Reduce the smoke that enters your home. ...
  4. Use a portable air cleaner or high-efficiency filter to remove fine particles from the air.

How to filter exhaust fumes?

Activated charcoal, the most common purification filtration medium, adsorbs chemicals with a molecular weight above 30 and a boiling point above 60°C. Carbon filters are also effective with many other chemicals because of their particular molecular structure.

Which is the best material to use for a homemade filter?

Any materials you think will make a great filter (cotton balls, sand or gravel, uncooked pasta noodles, coffee filters, etc.) *Don't worry if you don't have all of the materials. Get creative and substitute materials with what you have! It's all part of the design process.

Can fabric filter air?

Treatment of Air Discharges from Industry

Fabric woven from a wide variety of materials collects particulates from a gas that is forced through it. As a coating of filtered-out particles builds up on the surface of the filter fabric, this layer becomes an additional filter, usually more effective than the fabric alone.

What are cheap air filters made of?

Cheap air filters are often made from fiberglass or low-grade synthetic fibers. These materials offer basic filtration, capturing larger particles like dust and dirt, but are less effective for smaller particles and allergens.

How effective is a sploof?

While sploofs are great for reducing odor, they are not 100% effective in eliminating the smell completely.

Is it OK to smoke without filter?

Many people mistakenly believe smoking filtered cigarettes are safer than smoking non-filtered cigarettes. Filtered cigarettes are no safer than non-filtered. Filters do not protect you from bad chemicals and, in some ways, they may be more dangerous than non-filtered cigarettes.

What can I boil to purify air in my house?

Place 2 cups water in a 1-quart pot, boil, then add:
  1. 1 lemon, cut into thin slices.
  2. 3 sprigs rosemary.
  3. 1 tablespoon vanilla extract.
  4. 1 tablespoon orange zest.

How to DIY air purifier?

Step 1: Acquire a square fan (most air filters are squares or rectangles, so we're applying basic geometry). Step 2: Get yourself a HEPA filter (shoot for one similar in size to your fan). Step 3: Secure the filter to your fan via duct tape or packing tape, making sure to seal the connection as tightly as possible.

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