可與電動送風(PAPR)或供氣式(SA)呼吸防護產品配套使用，滿足不同防護環境的需求 Can also be used with PAPR or supplied air respirators to fit different using environments. ·特有口鼻罩最小空氣“死腔”設計，避免呼出的二氧化碳被再次吸入，降低使用者的工作疲勞度 

With specially designed oral/nasal cup to lessen”dead space”，avoid re-breathing in of exhaled CO2 and reduce the working fatigue of wearers. 
·獨有的呼氣閥設計，保證呼出氣體最大程度被排出面罩之外，提高使用者的佩戴舒適感 
Specially designed exhalation valve can vent the gases out from the mask to the most so that the user can experience more wearing comfort 
·特有的面部曲線貼合設計，360度密封，可滿足不同臉型佩戴需求。并且按人體工程學設計理念，不同部位密封圈厚度不一，更好地滿足鼻部、下頜部及臉部對于貼合性的不同要求 
Unique airtight curve of the inner mask offers 360°facial seal to fit various face shapes. It also has different mask thickness on different position based on the ideas of ergonomics design to ensure great fitness on the nose, chin and face. 
·頭部固定式設計及可調節式頭帶保證佩戴定位準確，不受作業者活動影響，消除佩戴不適感 
The head harness is positioned on the headand and also adjustable which can make the donning easy and comfortable regardless of any movements of the user. 
·整體下探式外形，避免對視線的影響，與防護眼鏡也能夠良好適配 
The shape is downwards designed in order to avoid any effects on the vision and also has a good compatibility with safety eyewear. 
·5500系列為一款經濟款半面罩。它保留了7700系列的絕大部分性能，由TPE熱塑彈性體橡膠制成，舒適經濟。在防護性能不受影響的前提下，最大程度地為客戶節約使用成本。 
5500 is the economic half mask. It keeps most of the features of 7700 and is made of TPE material which reduces the using costs of users to the most without acrificing any protection ability.

*可選配霍尼韋爾N系列的濾盒

產品編號	產品說明	尺碼	標準	類別	包裝
550030L	經濟款	大號	NIOSH	TPE 材料	12只/箱
550030M	經濟款	中號	NIOSH	TPE 材料	12只/箱
550030S	經濟款	小號	NIOSH	TPE 材料	12只/箱