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Indoor Air Quality Basics: Sources and Simple Fixes
Indoor air can carry smoke, dust, mould, cooking fumes, chemical vapours and radon. The best fixes are removing sources, ventilating and using filters where needed. These steps protect the air you breathe. A supplement changes none of it. Test for radon, and keep the home smoke-free.
Written by the PureLung label deskUpdated · 5 min read
Why indoor air matters
Most people spend most of their time indoors, and indoor air can hold more of some pollutants than outdoor air. Sources include tobacco smoke, cooking, gas appliances, candles and incense, cleaning products, mould, dust, pets and radon from the ground (ALA, Tips to Keep Your Lungs Healthy).
The three-step approach
The EPA and health groups describe three main steps: control sources, ventilate and clean the air.
| Step | Examples |
|---|---|
| Control sources | No smoking indoors, fix damp, choose low-fume cleaners, vent gas stoves |
| Ventilate | Open windows when outdoor air is good, run kitchen and bath fans |
| Clean the air | Use HEPA filters in rooms where needed, change furnace filters |
Smoke
Tobacco smoke is the worst indoor pollutant for many homes. Keep the home and car smoke-free. If someone in the home smokes, free help is at 1-800-QUIT-NOW (Smokefree.gov, Quit Smoking or Vaping).
Cooking
Cooking makes fine particles and, with gas, nitrogen dioxide. Use a hood that vents outdoors, turn on the fan and open a window. Cook with lids on. Avoid burning food.
Damp and mould
Fix leaks, dry wet areas within two days, keep humidity in a comfortable range and clean visible mould with detergent. A musty smell is a clue to look for hidden damp.
Some air cleaners make ozone, which irritates lungs. Choose HEPA filters and avoid ozone generators.
Radon
Radon is a colourless gas that rises from the ground and raises lung cancer risk. Test kits are cheap. If levels are high, a professional can reduce them. See the radon post.
PureLung: 60 capsules a bottlePacks of 1, 3 or 6 bottles · live price shown at checkout · guarantee as printed on the live listing
See packsFragrances and chemicals
Scented candles, sprays and plug-ins add vapours. Use fragrance-free products where you can. Store paints and solvents outside the living space, such as in a shed or garage with a sealed lid. Read labels for ventilation advice and open windows when you use strong products. Choose low-fume paint when you redecorate, and let new furniture air out before it goes into a bedroom.
Check the basics each season
A short seasonal check keeps the main sources in view. In autumn, change furnace and filter inserts, clean vents and check the chimney if you burn wood. In winter, watch for dry air and for fumes from heaters. In spring, check for leaks after rain and for mould in basements. In summer, use fans and open windows on days when outdoor air is good, and keep an eye on smoke from fires.
What does the PureLung label say?
The label shows 60 capsules, a serving of 2 and a 600 mg Proprietary Blend of eleven names with no single amount; it names no disease.
| Item | As printed |
|---|---|
| Form and count | Capsules, 60 per bottle; serving size 2 capsules; 30 servings |
| Blend per serving | Proprietary Blend, 600 mg: eleven names, no single amount printed |
| Inactive | Rice Flour, Magnesium Stearate, Silica Dioxide |
| Distributor | MJO, Sheridan, WY 82801 |
Putting it together
Start with the biggest source in your home. Make one change each week. A capsule cannot filter the air you breathe, and PureLung does not claim to. See the air quality index post for outdoor air.
3-bottle pack
3 bottles: 180 capsules
Not listed on the packNot listed on the pack a bottle
Shipping shown at checkout · Guarantee as printed on the live listing
Order 3 bottles
6-bottle pack
6 bottles: 360 capsules
Not listed on the packNot listed on the pack a bottle
Shipping shown at checkout · Guarantee as printed on the live listing
Order 6 bottlesPrices are filled in once the live listing is confirmed. A single bottle is also sold. Check your medicines with your doctor or pharmacist before you order, and keep using every inhaler and prescribed medicine.
FAQ01
PureLung questions people ask
Does an air purifier help?
A HEPA purifier can reduce particles in a room.
Do houseplants clean air?
Not enough to matter.
Is a gas stove a problem?
It adds fumes. Ventilate.
How do I test radon?
Use a test kit or hire a tester.
Can supplements clean indoor air?
No.
Who wrote this02
Written and reviewed by
Pages built from the label images, seller information and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is the information site for a U.S. authorized retailer for PureLung. It is not the manufacturer or the distributor named on the label. We earn money when you buy through our order links.
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