Philips Respironics Personal Best Full Range Peak Flow Meter Trilogy grey strap found at the

grey strap found at the crown of the head adjusts to prevent the headgear from sliding in different directions

Its compact design uses gel or silicone cushion options

It is designed to be worn more loosely than traditional headgear so the mask cushion can adapt to facial contours and movement through the night without pressure

a modified cushion shape

Compatible with the Homefill transfilling system

Philips Respironics Personal Best Full Range Peak Flow Meter Trilogy grey strap found at theThe Philips Respironics Personal Best Peak Flow Meter provides accurate and reliable peak expiratory flow measurements that meet the top quality standards. Its compact form factor and universal measuring range makes it easy to use and ideal for monitoring your lung function. Rely on reliable readings for assessing your asthma symptoms and managing your well being. Features: Comfortable oval mouthpiece and easy to use built in handle Handle converts