Quick answer: Face masks fall into three broad families — surgical/medical masks, respirators (N95, KN95, FFP2) and cloth masks — plus specialty options like kids’ masks. They differ mainly in how well they filter particles and how tightly they seal to your face. Surgical masks are loose-fitting barriers that mainly stop your droplets from spreading; respirators seal to the face and filter at least 94–95% of fine airborne particles; cloth masks offer the least, most variable protection. This guide breaks down each type, what the ratings mean, and how to choose the right one.
What is a face mask?
A face mask is protective gear worn over the nose and mouth to reduce the spread of microorganisms, droplets and airborne particles between the wearer and the people and environment around them. Masks come in different shapes, materials and filtration efficiencies, and different types are built for different jobs — everyday errands, healthcare, haze and air pollution, or industrial work.
Masks vs. respirators: what’s the difference?
People often call everything a “mask,” but there’s an important distinction:
- Masks act as a physical barrier against splashes, spit and larger droplets. According to the U.S. Food and Drug Administration (FDA), a surgical mask is a loose-fitting, disposable barrier and is not designed to seal to your face or reliably filter small airborne particles. Its biggest strength is source control — stopping the wearer’s own droplets from reaching others.
- Respirators (such as the N95) are built to seal tightly to the face and filter fine airborne particles. The U.S. National Institute for Occupational Safety and Health (NIOSH) certifies N95 respirators to filter at least 95% of 0.3-micron particles, and they require a proper fit to work as intended.
In short: a mask mostly protects others from you; a well-fitted respirator also protects you.
The main types of face masks
1. Surgical / medical masks (3-ply & 4-ply)
The familiar pleated disposable mask. A standard surgical mask uses 3 layers — an outer fluid-repellent layer, a middle melt-blown filter and a soft inner layer — while 4-ply versions add an extra filter or comfort layer. In the U.S., surgical masks are graded by the ASTM F2100 standard into Level 1, 2 and 3; higher levels mean higher bacterial and particle filtration and fluid resistance. Best for: daily use, clinics and crowded indoor spaces. Single-use — replace once damp, soiled or damaged.
2. Respirators: N95, KN95, FFP2 and KF94
These seal to the face and filter fine particles. The labels are simply different countries’ standards for a similar level of protection:
- N95 (U.S. / NIOSH) — filters at least 95% of fine particles; genuine NIOSH N95s use head straps, not ear loops.
- KN95 (China / GB2626) — at least 95%; often made with ear loops.
- FFP2 (Europe / EN 149) — at least 94%; very close to N95 in real-world use.
- KF94 (South Korea) — around 94%.
Best for: haze and heavy air pollution, high-risk settings, or anyone wanting maximum personal protection. Fit matters more than the label — gaps around the edges let unfiltered air in.
3. Cloth / fabric masks
Reusable fabric coverings. Filtration varies widely by material and number of layers, and they are generally the least protective option — but still better than no mask for basic source control. Best for: low-risk, everyday situations where comfort and reusability matter. Choose tightly-woven, multi-layer fabric and wash it regularly.
4. Kids’ masks & specialty masks
Children need masks sized for smaller faces so they seal properly — an adult mask gaping at the sides offers little protection. Look for child-specific 3-ply or 4-ply medical masks. Other specialty options include valved masks (for dust and industrial comfort, but not recommended for source control) and higher-grade N99/FFP3 respirators for the most demanding environments.
Face mask standards & filtration at a glance
| Type | Standard | Filtration |
|---|---|---|
| Surgical mask — Level 1 | ASTM F2100 (US) | BFE at least 95%, PFE at least 95% |
| Surgical mask — Level 2 | ASTM F2100 (US) | BFE at least 98%, PFE at least 98% |
| Surgical mask — Level 3 | ASTM F2100 (US) | BFE at least 98%, PFE at least 98% + highest fluid resistance |
| N95 | NIOSH 42 CFR 84 (US) | at least 95% at 0.3 micron |
| KN95 | GB2626 (China) | at least 95% at 0.3 micron |
| FFP2 / FFP3 | EN 149 (Europe) | at least 94% / at least 99% |
BFE = Bacterial Filtration Efficiency; PFE = Particle Filtration Efficiency. Sources: FDA, NIOSH, ASTM F2100, EN 149 and NIH.
How to choose the right mask
- Everyday errands, office or school: a Level 1–2 surgical/medical mask (3-ply or 4-ply) is comfortable and sufficient for most people.
- Haze, heavy air pollution or crowded high-risk settings: step up to an N95, KN95 or FFP2 for fine-particle protection.
- For children: a kids-sized medical mask that actually seals on a small face.
- Reusable or eco preference, low-risk days: a well-made multi-layer cloth mask.
Whatever you choose, fit and filtration are the two things that matter most — the best-rated mask won’t help if air leaks around the edges.
How to wear and dispose of a face mask correctly
- Wash or sanitise your hands before putting it on.
- Cover both your nose and chin, and press the nose wire to seal the top.
- Avoid touching the front; handle the mask by the ear loops or straps.
- Replace a disposable mask once it’s damp, soiled or damaged — don’t reuse single-use masks.
- Dispose of used masks in a covered bin, and wash cloth masks after each use.
Face masks at Lifeshine
Lifeshine’s Skin Hygiene range includes medical face masks in both adult and kids sizes, made for everyday Malaysian use — comfortable multi-ply protection at affordable prices.
- Skin Hygiene 3-Ply Medical Mask (Adult)
- Skin Hygiene Kids Medical Mask (3-Ply)
- Shop all Lifeshine face masks
Frequently asked questions
What are the main types of face masks?
The three main types are surgical/medical masks, respirators (N95, KN95, FFP2) and cloth masks, plus kids’ and specialty masks. They differ in filtration level and how tightly they seal to the face.
What’s the difference between a surgical mask and an N95?
A surgical mask is a loose barrier that mainly stops your own droplets from spreading and doesn’t seal to your face. An N95 respirator seals tightly and filters at least 95% of fine airborne particles, protecting the wearer too.
Is a KN95 the same as an N95?
They are very similar in filtration (both at least 95%) but certified to different national standards — N95 to U.S. NIOSH and KN95 to China’s GB2626. N95s typically use head straps, while KN95s often use ear loops.
Is a 4-ply mask better than a 3-ply mask?
A 4-ply mask adds an extra filter or comfort layer, which can improve filtration and comfort, but the mask’s rating (such as its ASTM level) and how well it fits matter more than ply count alone.
Are cloth masks effective?
Cloth masks offer the least and most variable protection, but a tightly-woven, multi-layer cloth mask still provides basic source control and is better than no mask in low-risk situations.
How often should I replace a disposable mask?
Replace single-use masks once they become damp, soiled, damaged or hard to breathe through — generally each day or each outing. Don’t reuse disposable masks.
Which mask is best for haze and air pollution?
For fine particles like PM2.5 during haze, choose an N95, KN95 or FFP2 that seals well to your face. Surgical and cloth masks filter fine particles less effectively.
How can I tell if a mask is genuine?
Check for the certification marking — for example NIOSH approval for N95s, or an ASTM level for surgical masks — and buy from reputable sellers. Genuine NIOSH N95s use head straps rather than ear loops.