Hydrofluoric (HF) acid, one of the strongest inorganic acids, is used mainly for industrial purposes (eg, glass etching, metal cleaning, electronics manufacturing). Hydrofluoric acid also may be found in home rust removers. Exposure usually is unintentional and often is due to inadequate use of protective measures.
It can be difficult to pinpoint the exact cause of a burning smell in nose. Thatâs because the potential causes are many. One possible explanation for this symptom is sinus congestion. A lot of people suffer from this, so you shouldnât rule it out. People with sinus problems sometimes smell things that arenât there, too.
Omgosh, this is disturbing. I am trying to figure out why I smell a urine smell in my nose when I wake up in the morning. I wake up and my nose feels dry from breathing all night with the heater going. When I wake I kinda rub my nose a little then breath in and smell it then it's gone.