COMPLETE FACE AND HEARING PROTECTION: This bundle features the popular Trend Air Face Shield and Trend Ear Defenders, providing comprehensive protection for your face and hearing. AIR CIRCULATION: The built-in fan in the Air Face Shield keeps a constant flow of filtered air across your face, preventing fogging and providing some cooling. FILTRATION EFFICIENCY: The twin fine dust filters in the AIR/PRO Air Face Shield filter particulates down to 0.3 microns with an efficiency rate of 98%. HEAD AND EAR PROTECTION: The Air Face Shield Pro has a comfortable adjustable headband (20.5"-24.4") and ANSI Z87+ Impact Rating. The Ear Defenders (AIR/P/6A) have a NRR of 22dB. LONG-LASTING: The Trend Air Shield Pro’s rechargeable battery allows for at least 8 hours of operation on a full charge. The ear defenders feature soft foam cushions and unique spring arms.