During the COVID-19 public health crisis, the US produced head-looped N95 masks to protect healthcare workers, regulated by the National Institute for Occupational Safety and Health (NIOSH). As the global demand for masks increased, N95s, which were in short supply, were preserved for medical settings.

Following this, many people turned to the ear-looped KN95, an equivalent of N95s produced in China, to protect against infectious diseases like COVID-19. The FDA issued emergency use authorization (EUA) for these masks to meet public demand.

Unfortunately, counterfeit respirators have also flooded the market, making it tricky to know if you're purchasing quality masks. For this reason, it's highly recommended to source your masks from a trusted supplier to ensure you're receiving the appropriate protection.

In this guide, we compare the KF94 masks and KN95 masks to determine how they work against infectious diseases and hopefully find which one is the best quality mask for you.

What are KN95 Face Masks?

The KN95 is a medical face mask that filters 95% of airborne particles and aligns with the Chinese standard for filtration devices. Like the N95 protective masks, KN95 masks are made of several polypropylene sheets, offering the best protection against airborne particles. The masks have a seam in the middle that forms a tent-like shape. Nearly all KN95 face masks are fastened around the head with ear loops.

KN95 protective face masks use a self-attestation method. Any company may manufacture them, but they must attest to regulators upon request that they are compliant with the set Chinese standards.

KN95 medical grade masks must always have the words “KN95” inscribed on them and the usual “GB 2626-2006” for earlier masks or “GB 2626-2019” for recent masks. They should also contain a model number for producers who manufacture over one model of KN95s.

What are KF94 Face Masks?

A KF94 mask works like a KN95 or N95 mask. It provides several levels of filtration that block out dirt, dust, and potentially harmful respiratory droplets that spread infectious diseases like COVID-19 in the air. The “KF” stands for “Korean filters,” as the masks meet the standards of the South Korean government. The “94” represents the percentage of filtration efficacy (KF94 masks filter 94% of aerosol particles).

The KF94 mask combines elements of an N95 mask and a cloth mask, including the non-flammable polypropylene material. It contours near the face and has an adjustable band around the nose bridge with a tight seal that prevents any viral particles.

The Differences and Similarities Between KF94 and KN95 Masks

There are several differences and similarities between KF94 and KN95 masks, most notably in their fit test and filtration efficacy.

Differences

Design

Nearly all KN95 masks feature a V-shaped design. They protrude from the nose and are curved over the cheeks.

KF94 masks, on the other hand, have a 3D-style design. Their front section is layered and cups over the mouth and nose, while the side flaps help the mask fasten more quickly and fit properly regardless of face shape.

Fit

Most people wear the KF94 masks for the comfort they offer compared to other masks. The mask's sides wrap around the face instead of directly sitting on it. KF94 also has a flatter and smoother design for those who aren't fans of the beak-shaped KN95 masks. The KF94 mask's three-fold design is also best for those who wear glasses since there is a tiny part up top where frames can rest.

The KN95 masks fit comfortably on all sides, but KF94 masks are better for an added customizable fit.

Similarities

Levels of Filtration

Both KN95 and KF94 masks have similarly high levels of filtration, which helps keep harmful particles and viruses from entering the mouth and nose. The KF94, as stated earlier, indicates a 94% filtration efficiency, which makes it very similar to the KN95 mask, which provides 95% filtration efficiency.

Even though the KN95 mask offers one added percentage of coverage, they are both very effective in preventing harmful particles from entering the mouth and nose when they're properly placed on the wearer's face.

As there isn't much difference between 95% and 94% filtration between both masks, the fit is a significant factor in how effective these masks are.

Both KF94 masks and KN95 masks have an adjustable noseband or nose seal that helps the mask stay put. They also have adjustable ear loops to allow you to tighten them for a more secure fit.

KN95 vs. KF94: Pros and Cons

As it is with any other product, both KF94 and KN95 have advantages and disadvantages.

KF94 Pros

• They're the best masks for those who wear glasses, as they're less likely to cause fogging.
• They do not get hot like other masks.
• They're lightweight, making them more comfortable.
• They're thick enough to provide adequate protection.
• They do not pull into the mouth when the wearer is talking or breathing.
• Some models offer space between the mouth and nose and the inside of the mask.

KF94 Cons

• Because of how lightweight these masks are, some wearers might need to constantly check if they're secure on their faces.
• They may require frequent adjustments for people with smaller faces or bigger ears.

KN95 Pros

• Their design fits perfectly on the face.
• Their thickness prevents harmful particles, even fine dust, from entering the mouth and nose.
• They're sleek and comfortable on the skin despite their slight thickness.
• One mask can be worn multiple times (up to five times according to the Centers for Disease Control and Prevention, which involves rotating between several masks).

KN95 Cons

• They require a slight effort to breathe normally.

Are KF94 and KN95 Safe Masks?

Yes, they are both high-quality masks and safe for the general public and for public health, though it is vital to purchase them from a legitimate source and to ensure you're getting one with a proper fit.

Can KN95 and KF94 Masks Be Reused?

Although designed for single use, the general public can wear these masks a few times before tossing them. According to the Centers for Disease Control and Prevention, they can be worn up to five times, after which they lose their effectiveness.

However, masks should be worn in rotation with other masks. Store them in paper bags for a few days before using them again. If masks were worn while the wearer is infected or becomes drenched, throw them away.

Which Mask Is Better: KF94 or KN95?

Given that the filtration efficacy of both KF94 and KN95 masks is relatively similar, comfort and fit are vital factors that make one mask more appropriate. Each model and grade of a mask fits differently depending on the type of face.

However, KN95 masks are the best mask to use for a broad range of the general populace. Since their standard was designed for public use, they're easy to put on and use and are available in many different sizes (even for very young kids), patterns, styles, and colors.

The design of the KN95 mask allows a flexible fit across various face sizes and shapes. The KN95 offers appropriate breathability and is considered the most protective mask because of its filtration efficacy and fit.

Testing several different models of masks is recommended to get the one you feel comfortable wearing for extended periods.

Is it Right to Double-Mask with KF94 or KN95?

Although double-masking helps reduce contact with possibly harmful aerosol particles by about 90%, you should not double-mask KF94 or KN95. The CDC is against double-masking with KF94 or KN95 masks with other surgical masks.

If you plan on double-masking, CDC mentions that the best combination is wearing a double-layered fabric mask over a medical-grade mask. This top cloth mask must push the ends of the bottom of the disposable mask against the face. You'll be adding up layers of protection while improving the mask's fit.

Bottom Line

Whether you choose a KF94, N95, KN95, or a KF94-style KN95 mask, you should make sure you're buying from a trustworthy company. There is a slight difference between KF94 and KN95 masks in terms of effectiveness, both have proved to maintain a high standard of quality because of strict manufacturing rules. This makes them ideal for healthcare workers.

Remember that a mask is only effective if appropriately worn over your face. Because of the variety in length of ear loops, size, and shape, not every mask will fit appropriately on every face.

If you're searching for N95, KN95, or KF94-style masks, Wellbefore has got you covered. Our high-quality mask options undergo rigorous testing to ensure they meet the required standards. For more information, contact us at +1-214-416-9009 or support@wellbefore.com and let us provide you with high-quality masks to protect against infectious diseases and other airborne viruses.