Ducted Fume Hood NDFH-100 also known as fume cupboard is designed to draw air away from the working area to protect the user from inhaling hazardous air contaminants or other toxic chemicals. The fume hoods create a negative air pressure environment by pulling the contaminated air up and away from the user's breathing zone and into a ventilation system or filter chamber. Anti-corrosive, anti-acid compact panel ensures safe working environment.