3M™ SecureFit™ X5504V-CE Vented Safety Helmet - Pack of 4 MT73H7P3E4D10EU-50 The valve allows air to

The valve allows air to flow out when you exhale making it easier to breathe and reduces the build-up of heat & moisture inside the mask

Flush mount

consistent insertion of the ear plug

Heavy-duty Li-ion battery - 837731

Integrated Bluetooth 4

3M™ SecureFit™ X5504V-CE Vented Safety Helmet - Pack of 4 MT73H7P3E4D10EU-50 The valve allows air toKey Features Secure, comfortable head protection against small falling objects and for general industrial use Suspension system incorporates exclusive patented 3M Pressure Diffusion Technology 4 point ratchet suspension allows wearer to customise height and fit with multiple levels of vertical adjustment Vents allow airflow through the helmet Optional vents allow airflow through the helmet Inspired by climbing helmets with a brimless design to give