Which substance is contained in pipe insulation,vinyl ceiling tiles,and floor tiles? 

A)  formaldehyde 
B)  asbestos 
C)  carbon monoxide 
D)  chloroform

Pipe Insulation

Material used to preserve the temperature of the water or fluid in pipes by reducing heat loss or gain.

Vinyl Ceiling Tiles

Ceiling tiles made from vinyl, a synthetic plastic material, used for aesthetic and acoustical purposes in construction.

Asbestos

Naturally occurring fibrous minerals that are resistant to heat, fire, and chemicals, previously used in construction materials but now restricted due to health risks associated with inhalation.