They are ideal for loud, demanding environments with high exposure to industrial noise, such as airports or construction sites, where hard hats must be worn. There are several adapters to choose from, making the hearing protectors compatible with a wide range of helmets. The helmet-mounted earmuffs in classic green attenuate noise levels by up to 30 dB. They feature sealing rings filled with a unique combination of liquid and foam. The generous space inside the capsules helps counteract heat and moisture buildup. The wide soft pads reduce pressure around the ears, allowing comfortable wear for long periods of time. The pads and foam inserts are available in hygiene kits that can be easily replaced when damaged or worn. This allows for a longer product life.