A significant part of fire cleanup focuses on purifying contaminated air and neutralizing odors caused by smoke. HEPA a high-powered vacuum with filters that trap airborne particles like soot. It can be used on surfaces including ceilings, walls and floors. Air scrubber – This machine helps eliminate odors and clean the air by using a filtration system to suck air in and filter it before releasing it back into the house. Negative air fan – Removes contaminated air that’s inside a home through ducts, creating negative air pressure (a vacuum effect).Ozone machine – Neutralizes odors and should only be used after a house is cleaned, emptied of all contents and vacated. The machine is typically used for a couple of days and the home must be ventilated for an additional 24 hours before reentry.