Can I make a homemade air purifier?

Author: Paolo Cole  |  Last update: Sunday, July 13, 2025

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.

Can you make your own 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.

How can I purify the air without an air purifier?

Simple things you can do to improve your indoor air quality include: Reduce dust by vacuuming regularly and using a microfiber or damp cloth for dusting. Reduce humidity to avoid mold and mildew buildup and change appliance filters regularly. And make sure to test your home for dangerous gases like radon.

How can I purify air cheaply?

You can build a simple but effective air purifier on the cheap with a 20-inch box fan, painter's tape, and a 20-inch by 20-inch 4-inch-thick MERV 13 (or MERV 12) furnace air filter. Just use the tape to attach the thick air filter to the back of the fan.

How do you naturally purify air in a room?

Here are some tips to improve your indoor air quality without using harmful chemicals like air fresheners.
  1. Open Your Windows. ...
  2. Spruce Up Your Decor With Houseplants. ...
  3. Opt for Essential Oil Diffusers. ...
  4. Opt for Beeswax Candles. ...
  5. Take Your Shoes Off. ...
  6. Keep Your Pets Groomed. ...
  7. Run the AC. ...
  8. Clean With Non-Toxic Chemicals.

DIY cheap & quiet HEPA air cleaner

What can I boil to purify air in 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.

What scent purifies the air?

A few of her favorites include Peppermint, Lavender, and Lemon. “These are cleansing oils, and can be diffused in your home to help cleanse the air, and promote clear breathing and healthy respiratory functions,” she explains.

What are 3 ways you can make your indoor air clean?

There are three basic strategies to improve indoor air quality:
  • Source Control.
  • Improved Ventilation.
  • Air cleaners/Filtration.

How to turn a fan into an air purifier?

No problem. You can still make an effective filter by holding the filter to the back of the running fan and letting suction hold the filter in place. Once the fan is turned off the filter will detach. Alternately, you can use duct tape or bungee cords to hold the filter to the fan.

What can I use as an air purifier?

DIY air cleaners are a more affordable and accessible alternative to commercial versions and can be constructed using a box fan and a high-efficiency home air filter (see Figure 1 below). Securing the filter to the fan creates an effective, simple air cleaning system.

How can I get rid of dust in my room without an air purifier?

How to Get Rid of Dust Without Actually Dusting
  1. Leave shoes at the door. ...
  2. Groom pets outside. ...
  3. Swap carpet for hardwood floors. ...
  4. Declutter your spaces. ...
  5. Use a humidifier. ...
  6. Keep windows closed. ...
  7. Change your HVAC filter. ...
  8. Sources.

How do you purify the air we breathe in?

Breathing polluted air affects your lung health now and in the future. Here are some simple actions we can take to reduce air pollution and to keep the air cleaner. Walk, bike, carpool, or take public transit. Reduce heating needs by making your house more energy efficient.

What are some natural air purifiers?

Top 10 Air Purifying Houseplants
  • Peace Lily. A popular houseplant that blooms indoor is the beautiful Peace Lily. ...
  • Weeping Fig. ...
  • Boston Fern. ...
  • Spider Plant. ...
  • Bamboo Palm. ...
  • Chrysanthemum. ...
  • English Ivy. ...
  • Snake Plant.

What materials can be used to filter air?

Air filter media can be made from paper, foam, carbon, aluminum, steel, fiberglass, or plastic. The performance of air filters is reported by the MERV rating, arrestance, dust holding capacity, dust spot efficiency, and MPPS.

What cleans the air the most?

Install an Air Purifier with a HEPA Filter

A quality air purifier is one of the best ways to improve your home's indoor air quality. There are air purifiers that scrub the air in a single room and larger ones that can clean the air in your entire home.

How can I purify my house without an air purifier?

Opening windows to improve ventilation, using essential oils like lavender or eucalyptus, and keeping your space clean by dusting and vacuuming regularly also help maintain better air quality.

What are the symptoms of bad air quality in a house?

Occupants of homes with poor indoor air quality may complain of symptoms such as headache, eye irritation, fatigue, dry throat, sinus congestion, dizziness, and nausea. Because many illnesses can cause these symptoms, diagnosing sick building syndrome is difficult.

What absorbs bad smells in the air?

Baking soda is probably one of the most useful tools in eliminating odors from your home. Instead of masking odors like air fresheners and candles, baking soda absorbs and neutralizes them. It has a reputation for being one of the best carpet deodorizers.

Does peppermint clear the air?

Peppermint Essential Oil – Peppermint Oil's main constituent, menthol, supports healthy breathing by acting as a decongestant. Its strong antiseptic properties disinfects surfaces and removes airborne bacteria while infusing a refreshingly cool aroma into the air you breathe.

How do you deodorize air naturally?

How To Make Homemade Air Freshener. Add about 25 drops of your favorite essential oil to 2 tablespoons of baking soda and stir to combine. Lemon and lavender are great choices, but eucalyptus is my favorite because of the refreshing scent.

How do I detox the air in my house?

Open a Window. Here's a great cheap solution… crack open some windows! Open your windows for a few minutes each day to ventilate your home with fresh air, and alleviate the air of any harmful toxins in your home.

Can you boil ground cinnamon to make your house smell good?

I swear, simmer pots are the BEST air freshener. Better than any spray, oil, or candle I have ever bought. The simplest method, and my go-to, is to grab a small saucepan, fill it with water, and toss in a few cinnamon sticks (or a few vigorous shakes of ground cinnamon).

Does baking soda purify air?

If you are allergic to essential oil smells and want to use something plain and basic to remove funky odours, you can place a bowl of baking soda in your home. The alkaline baking soda will purify your air and remove funky odours and foul smells without any extra scent.

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