Bullard S51 Flat Front Cap Style Hard Hat, HDPE, 4-Point Ratchet, Made in USA Color:Red Are these noise-cancelling headphones

Are these noise-cancelling headphones

What does P100 mean on the 75FFP100

This is the protection class covered by the ANSI/ISEA 138 impact standard

These are true smoke and CO alarm listener and alarm sound listener credentials as a smart alarm add-on

Can get brittle if stored past its shelf life

Bullard S51 Flat Front Cap Style Hard Hat, HDPE, 4-Point Ratchet, Made in USA Color:Red Are these noise-cancelling headphonesThe Bullard S51 is a flat front cap style HDPE hard hat built around a three rib shell, four point ratchet suspension, and cotton brow pad the same core platform as the S61 cap, distinguished by a flat front brim profile that reduces visual obstruction when looking upward and provides a lower profile appearance suited for facilities or programs where the standard peaked front brim creates line of sight or clearance issues. Domestically manufactured in