Main flow bacterial viral filter and water collected drain system, GGM provide both disposable type and reusable type for fit with the ventilator. This filter reduces particles and bacteria in patient’s exhaled gas, protecting the ventilator’s exhalation and spirometry systems. The water collected system can drain the water to prevent water damage from moisture gas. Moreover, we supply a diverse selection of respiratory care products, including spirometry filters, HFNC accessories, and breathing bags.