What Are the Common Misunderstandings in Using Professional Protective Masks for Industrial Operations?

In industrial operation scenarios such as chemical industry, dust processing, mechanical spraying and municipal operation and maintenance, professional protective masks are core equipment to protect workers' respiratory safety. In actual operation, most potential safety hazards do not stem from the equipment itself, but from various misunderstandings caused by irregular operation. Improper wearing, maintenance and selection methods will greatly reduce the protective performance of masks, failing to effectively block pollutants such as particulate matter and harmful gases. 
1. What are the high-frequency misunderstandings in mask wearing?
Irregular wearing operation is the most common use misunderstanding. Many operators deliberately loosen the headbands for higher comfort, resulting in poor fitting between the mask and the face and gaps around the edge, allowing pollutants to invade the mask. Some people only cover the nose and mouth without completely covering the jaw, or ignore the shaping of the nose bridge pressure strip, leaving permanent air leakage gaps at the nose bridge. In addition, wearing masks with long beards and sideburns or frame glasses will damage the sealing structure of masks and weaken the airtight effect, which is ignored by most operators. Meanwhile, omitting the pre-job air tightness self-inspection and going to work directly is an important misunderstanding that easily causes safety risks.
2. What are the typical misunderstandings in the use and replacement of filter materials?
Filter materials are the core components of mask protection, and there are many cognitive deviations in daily use. Many operators believe that filter materials can be used for a long time without obvious damage or peculiar smell, ignoring that filter materials will reach adsorption saturation and pore blockage with service time and environmental load, leading to increased breathing resistance and decreased protective efficiency. Some people mix filter materials, using gas filter canisters in dust environments and dust-proof filter cotton in toxic gas scenarios, which is not suitable for the operating environment. At the same time, reusing damp and polluted filter materials and failing to replace filter materials after long-term batch operation will leave hidden safety hazards for a long time.
3. What are the misunderstandings in scenario selection and emergency use?
Many operators have the wrong cognition that one type of mask is suitable for all scenarios. Half masks can only protect the nose and mouth, and cannot block chemical liquid splashes and harmful gas invasion to the eyes, so they are not applicable to chemical splashes and high-concentration harmful gas operation scenarios. Some people blindly use full-face masks for mild dust operations, resulting in resource waste. In addition, taking off masks temporarily during operation, randomly shifting masks, failing to replace filter materials in time after emergency operations, and using filter protective masks in oxygen-deficient environments are all use misunderstandings that violate safety specifications.
4. What are the easily ignored misunderstandings in daily maintenance and storage?
Improper daily maintenance and storage will indirectly damage the performance of protective masks. Most operators stack masks randomly after work, contacting with oil stains and sundries, causing aging and hardening of the mask silicone sealing gasket. Some people use corrosive detergents to clean masks and damage the mask material. At the same time, filter materials are stored without sealing, which will absorb impurities and moisture in the air in advance, resulting in substandard protective performance during use. Enterprises and operators should abandon all kinds of use misunderstandings and operate in strict accordance with industrial specifications to give full play to the safety protection effect of protective masks.