Guarding Health

About MaskFirm

    Boulder Colorado, United States
    Tongzhou Beijing, China is a leading online store specializing in face masks, offering the largest variety and most cooperative brands in the world. As a part of Kinsop, a global trading company, is committed to providing customers with professional technical and market support. With a strong presence in China, Instocking LLC is responsible for North American business, ensuring stable quality, competitive prices, and fast shipments.

One of the key advantages of is its professional team, which ensures that only strictly certified products are sold and provides comprehensive solutions to customers. The team is experienced in looking for new sources of masks, establishing cooperative relationships with brands and factories, supplying samples and products, providing market data and technology consulting.

The product catalog of includes a wide range of items such as N95 masks, surgical N95 masks, disposable medical masks, medical protective clothing, protective suits, protective gloves, shoe covers, goggles, and more. The team at is well-versed in global standards such as NIOSH/FDA/510K/ASTM/OSHA/FFP2/FFP3/EAC/TGA/GB, ensuring that customers receive products that meet the required certifications. With a stable supply from over 10 factories and a safe delivery system, is supported by a skilled IT department and has branches in China, USA, and Australia.

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Reassuring Collaboration

As a professional mask supplier, ensures that all masks provided are certified by FDA and CE. The company only collaborates with manufacturers and brands that have passed strict production process standards, ensuring the highest quality and safety for customers.

Choose as your trusted supplier for N95 masks and other protective equipment, and experience the expertise, professionalism, and quality that we offer.

Who do we serve

Cooperative Clients


Individual Consumers

With increased awareness of public health and personal health, individual consumers have also become important customers in the mask industry. They purchase masks for self-protection, protecting their family members, and participating in various activities.


Retailers Wholesalers

As intermediaries in the mask supply chain, retailers and wholesalers are also major customers in the mask industry. And it is also a customer that we attach great importance to. Helping masks to reach end-users from manufacturers, Contact us.


Healthcare Institutions

Hospitals, clinics, medical centers, and other healthcare institutions are major customers in the mask industry. Masks are crucial for protecting the safety of doctors, nurses, and patients in the healthcare setting.


Corporations Businesses

Various corporations and businesses may also be major customers in the mask industry. For example, industrial companies, construction sites, the food service industry, transportation industry, and others may require a significant quantity of masks to ensure the safety of their employees and customers.


Government Organizations

Government and public agencies may require a large quantity of masks for public health emergencies, disaster response, and other purposes. For example, masks may be distributed for free to community residents during public health emergencies or used for emergency rescue and post-disaster recovery.