---
product_id: 537247210
title: "FreeMascot OD 4+ 190nm-540nm Wavelength Laser Safety Glasses for Typical 405nm, 450nm, 520nm, 532nm Laser Light for Hair Removal Laser Treatment Eye Protection Goggles (Red)"
brand: "freemascot"
price: "€ 19.98"
currency: EUR
in_stock: true
reviews_count: 8
category: "Free Mascot"
url: https://www.desertcart.pt/products/537247210-freemascot-od-4-190nm-540nm-wavelength-laser-safety-glasses-typical
store_origin: PT
region: Portugal
---

# 190-540nm broad wavelength coverage 30% visible light transmittance with anti-glare OD 4+ optical density for max laser protection FreeMascot OD 4+ 190nm-540nm Wavelength Laser Safety Glasses for Typical 405nm, 450nm, 520nm, 532nm Laser Light for Hair Removal Laser Treatment Eye Protection Goggles (Red)

**Brand:** freemascot
**Price:** € 19.98
**Availability:** ✅ In Stock

## Summary

> 🛡️ See safety in a new light — protect your vision, own your glow!

## Quick Answers

- **What is this?** FreeMascot OD 4+ 190nm-540nm Wavelength Laser Safety Glasses for Typical 405nm, 450nm, 520nm, 532nm Laser Light for Hair Removal Laser Treatment Eye Protection Goggles (Red) by freemascot
- **How much does it cost?** € 19.98 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/537247210-freemascot-od-4-190nm-540nm-wavelength-laser-safety-glasses-typical)

## Best For

- freemascot enthusiasts

## Why This Product

- Trusted freemascot brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Daylight-Ready Vision:** 30% visible light transmittance reduces glare and eye fatigue during red light therapy and laser treatments.
- • **Comfort Meets Coverage:** Generous wrap-around design fits over prescription glasses, ensuring full eye protection without compromise.
- • **Certified Safety Assurance:** ANSI Z87.1 approved goggles guarantee professional-grade eye protection you can trust.
- • **Complete Care Kit Included:** Each pair comes with a sleek protective case and cleaning cloth to keep your glasses pristine and ready.
- • **Broad-Spectrum Laser Defense:** Protects eyes from UV to visible red lasers (190-540nm) with industry-leading OD 4+ filtration.

## Overview

FreeMascot OD 4+ Laser Safety Glasses deliver professional-grade eye protection across a broad 190-540nm wavelength range, blocking harmful UV, blue, red, and infrared laser light with an optical density of 4+. Designed for comfort and maximum coverage, these ANSI Z87.1 certified goggles fit over prescription glasses and reduce glare with 30% visible light transmittance. Ideal for laser hair removal, red light therapy, tanning, and medical treatments, they come complete with a protective case and cleaning cloth, making them an essential upgrade for anyone serious about eye safety and wellness.

## Description

Product Description FreeMascot Professional Red Light Therapy Glasses FreeMascot 200-2000nm ultimate red light therapy eye protection glasses for red light therapy / laser hair removal / tanning / infrared sauna /dental treatment etc. High Quality Filters High qualitiy PC lens with broad spectrum protection can block UV, Blue, Red and Infrared Laser Lights Red Light Therapy Eye Protection The glasses can reduce glare and eye fatigue when you doing red light therapy, laser hair removal, tanning etc. It can help you to get rid of red eyes, eye pain, headaches, sharp vision loss and other problems Safe Packing Each pair of safety glasses comes with a protective storage case and a cleaning cloth.

Review: helped fix my extremely severe DSPD. I can finally get sleepy at night and be awake during the day - So my body's schedule is perfectly fine when I am backpacking and outside 24 hours a day in beautiful summer weather. However, if it's an overcast day, my delay is 2-3 hours, for a 26-27 hour cycle. If I'm sleeping in a room without a real direct-light window, my delay is 5 hours, for a 29 hour cycle. I have had narcolepsy and a severely delayed circadian rhythm my entire life if my light exposure is not completely synced to the equivalent of full outdoor sun. People without this problem will make suggestions like "just go for a 15 minute walk outside every morning". No, I literally need continuous full outdoor sun THE ENTIRE DAY in order to not fall asleep midday. As you can imagine, this is very bad for work. I thought my night light exposure was fine because I have already switched over all my bedroom lights to dim orange/amber lights and have blue filters on my computer and phone, but it turns out that these red goggles do even better. They filter ambient street light, fridge lights, not-so-orange common space lights, and other random lights I might accidentally see walking around the house in the evening that I don't think about. These red goggles solved half of my problem. When I start wearing them 2+ hours before my target bedtime, I actually feel sleepy by my target bedtime, even if it's before midnight. Game changer and much better filtering and wraparound than standard blue-blocker glasses for only $10! Pure blue lights are completely invisible through these glasses, it looks like nothing is on. For the other half of the problem -- simulating full sunlight on days when it's either overcast, or I need to work indoors -- I read OptimizeYourBiology sun lamp reviews and ended up buying the Luminette 3 (~$200) and Alaska Northern Lights Mini Pad (~$200). I balked at the prices at first, but they have proven to be a very good deal considering they are giving me back several hours a day every day that I would usually spend struggling with my severe sleep disorder. I can finally cosplay as a normal person, at least where being awake is concerned. FYI, you'll get much better customer service if you buy directly through their websites rather than through desertcart.
Review: Large, Comfortable, Effective - These safety glasses are excellent, they provide great wrap-around coverage which is something I find lacking in many inexpensive pairs. They're quite large, they fit my enormous head comfortably even over my prescription glasses which I was really not expecting - they're so large they can even fit over some of my old laser safety glasses. I wish I could verify their claims about optical density, but I can say is these do thoroughly block the scatter from my 455nm blue laser engraver, just about any source of clean blue light disappears with these on. Very happy with these, a welcome upgrade over others I've tried in this price range.

## Features

- Wavelength: 190nm-540nm
- Optical density: OD 4+; Visible light transmittance: 30%, Enhance Red Beam Laser at daylight
- ANSI Z87.1 approved.
- Compatible with 405nm, 445nm,450nm, 520nm, 532nm laser light
- Packing List: Goggles with Case and Clean Cloth

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BYC25H5W |
| Age Range Description | Adult |
| Best Sellers Rank | #36,913 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #16 in Medical Safety Glasses |
| Brand Name | FreeMascot |
| Care instructions | Clean with the provided cloth and store in the case when not in use. |
| Color | Red |
| Customer Reviews | 4.5 out of 5 stars 177 Reviews |
| Fit Type | Fit-over |
| Frame Material | Plastic |
| Frame Type | Full Rim |
| Included Components | Clean cloth and case |
| Is Metal Detectable | No |
| Item Dimensions | 6.2 x 5.6 x 2.2 inches |
| Item Package Quantity | 1 |
| Item Type Name | Safety Glasses |
| Item Weight | 0.1 Kilograms |
| Lens Coating | Anti-Fog Coating |
| Lens Color | Red |
| Lens Material | Polycarbonate |
| Manufacturer | FreeMascot |
| Material | Plastic Frame, polycarbonate glasses |
| Model Name | S3 |
| Number of Items | 1 |
| Origin | Imported |
| Product Care Instructions | Clean with the provided cloth and store in the case when not in use. |
| Size | 5*5.9 in |
| Style | Fit-over |
| Style Number | PTHSS9 |
| UPC | 630456999032 |
| Ultraviolet Light Protection | Yes |
| Unit Count | 1.0 Count |
| Warranty Description | 6 Months |

## Images

![FreeMascot OD 4+ 190nm-540nm Wavelength Laser Safety Glasses for Typical 405nm, 450nm, 520nm, 532nm Laser Light for Hair Removal Laser Treatment Eye Protection Goggles (Red) - Image 1](https://m.media-amazon.com/images/I/51Pn5bAyOrL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ helped fix my extremely severe DSPD. I can finally get sleepy at night and be awake during the day
*by K***G on June 12, 2025*

So my body's schedule is perfectly fine when I am backpacking and outside 24 hours a day in beautiful summer weather. However, if it's an overcast day, my delay is 2-3 hours, for a 26-27 hour cycle. If I'm sleeping in a room without a real direct-light window, my delay is 5 hours, for a 29 hour cycle. I have had narcolepsy and a severely delayed circadian rhythm my entire life if my light exposure is not completely synced to the equivalent of full outdoor sun. People without this problem will make suggestions like "just go for a 15 minute walk outside every morning". No, I literally need continuous full outdoor sun THE ENTIRE DAY in order to not fall asleep midday. As you can imagine, this is very bad for work. I thought my night light exposure was fine because I have already switched over all my bedroom lights to dim orange/amber lights and have blue filters on my computer and phone, but it turns out that these red goggles do even better. They filter ambient street light, fridge lights, not-so-orange common space lights, and other random lights I might accidentally see walking around the house in the evening that I don't think about. These red goggles solved half of my problem. When I start wearing them 2+ hours before my target bedtime, I actually feel sleepy by my target bedtime, even if it's before midnight. Game changer and much better filtering and wraparound than standard blue-blocker glasses for only $10! Pure blue lights are completely invisible through these glasses, it looks like nothing is on. For the other half of the problem -- simulating full sunlight on days when it's either overcast, or I need to work indoors -- I read OptimizeYourBiology sun lamp reviews and ended up buying the Luminette 3 (~$200) and Alaska Northern Lights Mini Pad (~$200). I balked at the prices at first, but they have proven to be a very good deal considering they are giving me back several hours a day every day that I would usually spend struggling with my severe sleep disorder. I can finally cosplay as a normal person, at least where being awake is concerned. FYI, you'll get much better customer service if you buy directly through their websites rather than through Amazon.

### ⭐⭐⭐⭐⭐ Large, Comfortable, Effective
*by J***E on July 14, 2025*

These safety glasses are excellent, they provide great wrap-around coverage which is something I find lacking in many inexpensive pairs. They're quite large, they fit my enormous head comfortably even over my prescription glasses which I was really not expecting - they're so large they can even fit over some of my old laser safety glasses. I wish I could verify their claims about optical density, but I can say is these do thoroughly block the scatter from my 455nm blue laser engraver, just about any source of clean blue light disappears with these on. Very happy with these, a welcome upgrade over others I've tried in this price range.

### ⭐⭐⭐⭐⭐ Perfect second pair or backup pair for blocking blue artificial light sources in the evening.
*by C***M on March 31, 2025*

I got these to compare with the $60 version made by Safety Blue and they hold up as a direct replacement so I have both. Minimizing night time after hours blue light from indoor lighting and devices and TV screens consistently over time reduces a great deal of stress on the eyes and brain after decades of no precautions, these are perfect for fitting over ordinary corrective lens frames. Huge value compared to the alternative, comfortable to wear for long hours.

## Frequently Bought Together

- FreeMascot OD 4+ 190nm-540nm Wavelength Laser Safety Glasses for Typical 405nm, 450nm, 520nm, 532nm Laser Light for Hair Removal Laser Treatment Eye Protection Goggles (Red)
- FreeMascot IPL 200nm-2000nm Laser Safety Glasses for Laser Hair Removal Treatment and Laser Cosmetology Operator Eye Protection with Case (Green)
- FreeMascot OD 4+ 190nm-550nm Wavelength Laser Safety Glasses for Typical 405nm, 445nm, 450nm,520nm,532nm Laser Light for Hair Removal Laser Treatment Eye Protection Goggles (Red)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-21*