A child-size gas mask has to do two things an adult mask doesn't: seal on a much smaller face, and work for a child who may not have the lung power to pull air through a filter. That second point decides which mask is right. MIRA Safety, whose children's masks we carry, says a standard filter mask should only be used by children who can blow up a balloon on their own, and it recommends pairing even those masks with a powered air-purifying respirator (PAPR). This guide covers MIRA's two children's options, how MIRA sizes them, how to check the fit, and how to store them. You can see every model on our gas masks page.
What Kinds of Gas Masks Are Made for Children?
MIRA Safety's children's line has two designs:
- A full-face filter mask, the MD-1 Children's CBRN Gas Mask. It works like an adult mask: the child breathes in through a 40mm filter, and the mask has to seal against the face.
- A powered hood, the MD-2 Child CBRN Escape Respirator (PAPR). A battery blower pushes filtered air into a hood that slips over the head. It doesn't rely on a face seal or on the child's breathing effort.
MIRA describes the MD-2 as a hooded, powered system for younger children who can't reliably draw air through a filter on their own.
How Do You Choose the Right Size?
MIRA lists the MD-1 in two sizes on its MD-1 product page:
- Medium: children about 2 to 6 years old
- Large: children about 6 to 12 years old
Age is only a starting point, because faces vary. The mask should cover from just below the chin to the forehead without gaps at the cheeks or temples. MIRA's own pages give slightly different minimum ages in different places, and the MD-2 page describes it as fitting children from about age 2 to small teens. If you're unsure, contact MIRA or our team before you buy.
Which Is Better for Young Children: a Filter Mask or a PAPR?
MIRA's guidance is direct: "A standard negative-pressure gas mask should only be used by children that can blow up a balloon with their own lung power. Even if your child passes the balloon test, we highly recommend using a Powered Air-Purifying Respirator (PAPR) with the MD-1."
In practice:
- Toddlers and small children: a powered hood like the MD-2 avoids both problems. There's no seal to get right and no breathing effort required. MIRA states the MD-2 delivers about 45 liters of filtered air per minute and runs up to 15 hours on four CR123 batteries.
- Older children who pass the balloon test: the MD-1 is an option, ideally with a PAPR blower attached.
For families who want everything in one box, the Kids CBRN Gas Mask Positive-Pressure Kit and Kids Gas Mask Nuclear Survival Kit bundle a child's mask with filters and accessories. Check each product page for exactly what's included.
How Do You Fit-Check a Child's Gas Mask?
MIRA publishes a general fit test guide for its masks. For a filter mask like the MD-1:
- Loosen all the straps fully before putting the mask on.
- Place the mask chin first, then pull the head harness back over the head.
- Tighten the bottom straps near the jaw first, then work upward. The top straps go last, with the least tension.
- Purge: cover the exhalation valve and exhale sharply to clear the mask.
- Negative-pressure check: cover the filter inlet and have the child breathe in. The mask should pull slightly toward the face, with no air leaking at the edges.
Practice at home, calmly and more than once. A child who has worn the mask in a game is far more likely to keep it on when it matters. MIRA also advises inspecting masks regularly to make sure they still seal.
What Filters Do Children's Masks Use?
The MD-1 takes standard 40mm NATO-threaded filters (EN 148-1), the same as MIRA's adult masks, so a family can share one filter type. MIRA includes an extension hose so the filter can sit in a pouch rather than hang off a small child's face. Filters are sold separately. See our gas mask filters and our guide to choosing a CBRN filter.
How Should You Store a Child's Gas Mask?
MIRA recommends storing the MD-1 at 5–25°C (41–77°F) with humidity up to 60%, in the dark and out of direct sunlight. Keep filters sealed until you need them, and check the mask and filter dates when you check the rest of your kit.
What's in a Kids' Gas Mask Survival Kit?
MIRA's Kids Gas Mask Nuclear Survival Kit bundles everything a child needs in one pouch. According to MIRA, it includes:
- the MD-1 children's gas mask in Medium or Large;
- an NBC-77 SOF CBRN filter, which MIRA lists with a 20-year shelf life;
- a breathing hose, so the filter can sit in the pouch rather than on the child's face;
- a gas mask pouch with a neck strap;
- 20 FDA-approved ThyroSafe potassium iodide tablets (65 mg).
MIRA describes the kit as designed for up to 10 years of shelf-stable storage. Source: MIRA Safety. Potassium iodide protects only the thyroid, and only against radioactive iodine. Follow public health officials' instructions on whether and when to take it.
Do Children's Gas Masks Expire?
Yes. Masks and filters both have shelf lives. MIRA lists the MD-1 masks in its kids' kit as having a 10-year shelf life and the NBC-77 SOF filter at 20 years. Filters are the part to watch: keep them sealed until needed, and check the date printed on each one. Store masks as MIRA recommends, cool, dark and dry, and inspect them when you check the rest of your emergency kit.
How Do You Help a Child Get Used to a Gas Mask?
A mask is only useful if a child will keep it on. A few practical tips:
- Make it familiar. Let them handle it, try it on, and see you wear yours first.
- Practice short, then longer. A minute at a time, building up.
- Turn it into a drill, not a scare. Fold it into the same calm routine as a fire drill.
- Re-check the size every year. Children grow out of a Medium faster than you'd expect.
For toddlers who won't tolerate a mask, or can't breathe through a filter, MIRA's powered MD-2 hood is the option it recommends.
Common Questions
Are there gas masks for babies?
MIRA describes its powered MD-2 hood as a system for infants and younger children who can't draw air through a filter themselves. Its pages also give different minimum ages in different places. Contact MIRA, or ask us, before buying for a baby or toddler.
What size gas mask does my child need?
MIRA sizes the MD-1 as Medium for about ages 2–6 and Large for about ages 6–12. Check the fit on your child rather than relying on age alone.
Can a toddler wear a regular gas mask?
MIRA advises against a standard filter mask for any child who can't blow up a balloon on their own, and recommends a powered option such as the MD-2 hood instead.
Can my child use an adult filter?
The MD-1 uses the same 40mm NATO thread as most adult CBRN masks, so the filters are interchangeable. Use the extension hose to keep the weight off a child's face.
Is a child's gas mask a guarantee of protection?
No mask is. Protection depends on the right filter for the threat, a proper fit, and correct use. Follow the manufacturer's instructions and official guidance in an emergency.
See the full range on our MIRA Safety page. For a whole-family plan, read how to build a complete CBRN bug-out kit.
