how do you know what size to order?

I tried to order all sizes and Amazon sent med. while too large these worked, blocked the allergens. I re ordered small and haven't needed them since.

How do you know what size to order?

I'm 4'11" so anything I order has to be the closest to a child's size as possible. I'd say if you're an average sized person with average size nostrils the prob medium will work. I love this product btw. Masks are always so hot and these are perfect and lay the whole day!

How do you know the size o buy?

I usually buy med which is a little larger than I need but it’s easier to use. For women small and med should be fine and for guys I would go med or large unless you have small features.

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First Defense Nasal Screens - Pick-A-Size and Quantity Packs (1-Pack, Small)

Product ID: 369064806

Details

Brand
First Defense
Colour
White
Material
Plastic
Model name
First Defense
Size
7 Count (Pack

🌿Hypoallergenic & latex-free

🌬️Lightweight & non-intrusive

🛡️77% filtration at 0.1µm

153 K

Duties & taxes included

In stock

Sold byAmazon Papua New GuineaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Papua New Guinea.

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Description

🌬️ Invisible shield for unstoppable professionals

ALLERGY ARMOR - Hypoallergenic, latex-free material protects sensitive skin without irritation
INVISIBLE DEFENSE - Ultra-thin, non-inserted design stays discreet and comfortable all day
EFFORTLESS PROTECTION - Self-adhesive, pick-a-size screens for a perfect fit and hassle-free wear
STAY AHEAD OF ALLERGENS - Scientifically proven filtration efficiency keeps you breathing fresh in any environment
BREATHE CLEAN LIVE BOLD - Filters 99% of airborne particles ≥10µm for pure air confidence

First Defense Nasal Screens offer a revolutionary, lightweight, and hypoallergenic solution to filter airborne germs, allergens, and noxious particles with up to 99% efficiency at 10 microns. Designed for comfort and invisibility, these self-adhesive, latex-free screens provide discreet respiratory protection without insertion, making them ideal for allergy sufferers and health-conscious professionals.

Specifications

ASIN	B00JZVC5EO
ASIN	B00JZVC5EO
Best Sellers Rank	#129,080 in Health ( See Top 100 in Health ) #107 in Lung & Breathing Medication
Brand Name	First Defense
Color	White
Customer Reviews	4.0 4.0 out of 5 stars (296)
Customer reviews	4.0 4.0 out of 5 stars (296)
Is Discontinued By Manufacturer	No
Manufacturer	First Defense
Manufacturer	First Defense
Manufacturer Part Number	FD1PKSM
Manufacturer reference	FD1PKSM
Material Type	Plastic
Model Name	First Defense
Number of Layers	1
Package Dimensions	16.69 x 8.2 x 1.7 cm; 272 g
Size	7 Count (Pack of 1)
UPC	609788973263
Unit Count	7.0 Count

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Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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153 K

Duties & taxes included

In stock

Sold byAmazon Papua New GuineaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Papua New Guinea.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

View all Trustpilot reviews