what things can damage your lungs

Cockroaches -
These insects are not just repulsive–cockroaches actually contain an allergen that can cause asthma.

Birds -
Being exposed to these allergens may cause you to develop bird fancier's lung (BFL), which is a type of hypersensitivity pneumonitis.

Fireworks -
As for the characteristic smell, it’s created by volatile organic compounds (VOCs), which are also not good for your lungs.

Flour -
Yes, flour can hurt your lungs. Flour dust in particular, which is a hazardous substance, can cause a condition known as baker's asthma.

Airbags -
Airbags save lives, but they can also trigger asthma, too. 

Humidifiers -
It goes without saying that breathing contaminated humidifier air is not good for your lungs.

Gas appliances -
Yes, your stove may be hurting your lungs. The combustion causes nitrogen dioxide and nitric oxide to be released.

Hot tubs -
Hot tubs can be incredibly relaxing, but they can also be breathing grounds for bacteria. Mycobacterium avium complex (MAC), which affects the lungs.

Mold -
Mold can really affect those who have any sort of lung condition, including asthma. 

Carpet -
Carpets can hold on to dust and a number of allergens and microorganisms. 

Insulation -
Insulation often contains materials such as aerogels, fiberglass, and calcium silicate. It can irritate your lungs.

Wood-burning stoves -
These look and feel amazing, but they too can hurt your lungs. Breathing wood smoke can irritate your lungs and indeed trigger asthma.

Vaping -
E-liquid contains many chemicals that can cause an inflammatory response in your lungs.

Fragrances - t turns out, though, that some chemicals used to make those fragrances can hurt your lungs.

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