The Gentex and ALPHA Maxillofacial Shields (MFS) safeguard the lower face from rotor wash, flying debris and windblast during helicopter operations. An optional upgrade to Gentex HGU-56/P, HGU-84/P, or SPH-5® Rotary Wing Helmet Systems; ALPHA 900 Cross Platform Helmet Systems; and the ALPHA Eagle Helmet System, the MFS significantly enhances communications clarity by reducing wind noise across the boom microphone.