@lisalucier I am hypersensitive to formaldehyde odors. I knew someone working with pathogenic fungi. Flormaldehyde was used as the mounting medium. The skin not protected by the eye pieces was burned. In my teens a doctor prescribed a formaldehyde mouth wash for mouths ulcers Luckily my mother listened when I complained. Cause of sores : vitamin B deficiency. All of which is to say it is highly toxic …it is embalming fluid