what level you can smell formaldehyde
Low levels of formaldehyde in indoor air are actually very common. When found at high levels in air, it can be detected by a sharp smell. High concentrations of formaldehyde can cause irritation of the eyes, nose and throat and can worsen asthma symptoms in children and infants.ll houses had at least some formaldehyde in indoor air. On average, formaldehyde levels measured over a day in Canadian homes were 20-40 Î¼g/m 3 (16-32.5 ppb). Daily levels as high as 95 Î¼g/m 3 (77 ppb), however, have been recorded.