Gester Instruments | Professional Textile, Footwear and PPE Testing Equipments Manufacturers Since 1997

Types of masks and standard classification methods

2021-05-21

Gester Instruments

334

The filter efficiency of a mask refers to the filter efficiency of melt blown. Because melt blown has the characteristics of filtering dust, particles, dust, pollen and so on. At present, there are several filtering effects as follows: 1. BFE95 explanation: When tested at a flow rate of 32 liters, the filtering effect of 3 micron bacterial particles reaches 95%. Gram weight: 18-30g2, BFE99 explanation: Detected at a flow rate of 32 liters, the filtering effect of 3 micron bacterial particles reaches 99%. Weight: 20-30g3, VFE99 Explanation: Detected at a flow rate of 32 liters, the filtering effect of 3 micron virus particles reaches 99%. Weight: 25-30g4, PFE99 Explanation: Detected at a flow rate of 32 liters, the filtering effect of 0.1 micron particles reaches 99%. Gram weight: 24-30g5, KN90 Explanation: Detected under 55 liters of flow, the filtration effect of 0.3 micron solid particles reaches 90%. Gram weight: 30-50g6, N95 Explanation: Detected under 85 liters of flow, the filtration effect of 0.3 micron solid particles reaches 95%. Gram weight: double layer 50g7, N99 Explanation: Detected under 85 liters of flow, the filtration effect of 0.3 micron solid particles reaches 99%. Weight: Double-layer 80g8, FFP1 Explanation: It is equivalent to the standard of N90. Weight: 50g9, FFP2 Explanation: It is equivalent to the standard of N95. Weight: 50g10, KN90: filtration efficiency: ≥90%11, KN95: filtration efficiency: ≥95%12, KN100: filtration efficiency: ≥99.97%13, KP90: oily filtration efficiency: ≥90%14, KP95: oily filtration Efficiency: ≥95%15, KP100: Oily filtration efficiency: ≥100%

GESTER International Co.,Limited promises that we will manufature our products in accordance with the strictest quality standards.

GESTER International Co.,Limited is a textile testing equipment services company that creates tensile tester manufacturers textile testing equipment for tensile tester manufacturers.Our services have brought great value to customers. Welcome to visit us at GESTER Instruments.

Even textile testing equipment are being made fine with advanced equipment.

GET IN TOUCH WITH Us

input must not exceed 280 in length!

name

Please enter a valid email address!

Please enter a valid phone number!

phone/whatsApp

input must not exceed 280 in length!

Company Name

textarea must not exceed 65530 in length!

content

Sweating Guarded Hotplate GT-C98 Guide: Find the Right Testing Machine for Your Needs

The Sweating Guarded Hotplate GT-C98 is a professional instrument designed to evaluate the thermal resistance (Rct) and water-vapor resistance (Ret) of textiles and related materials. By simulating human skin heat dissipation and sweating under controlled conditions, it provides accurate and repeatable data for comfort and protective performance analysis. This guide introduces the testing principle, applicable international standards, industry applications, and key technical features to help users identify the right testing machine for product development, quality control, and research.

Technical Insight: How a Professional EN388 Gloves Tester Company Evaluates Durability

In industrial settings, protective gloves’ durability is critical for workplace safety, with the EN388 standard serving as the global benchmark for evaluating abrasion, cut, tear, and puncture resistance. GESTER International Co., Ltd., a professional EN388 gloves tester company with over 20 years of experience, delivers high-precision testing solutions to ensure accurate and reliable durability assessments. Equipped with advanced instruments like the Safety Glove & Shoe Upper Cutting Tester GT-KC29—featuring LCD display, real-time monitoring, and compliance with EN, ISO, and ASTM standards—GESTER’s solutions meet the rigorous demands of laboratories, manufacturers, and international testing institutes such as SGS, TUV, and Intertek. Adhering to ISO 9001 quality management systems and offering comprehensive after-sales support (installation, training, calibration), GESTER empowers clients to validate PPE performance, mitigate workplace risks, and achieve global regulatory compliance. For trusted EN388 gloves durability testing equipment and integrated laboratory solutions, GESTER is the preferred partner in the PPE industry.

GESTER's Success at Shoes & Leather - Vietnam 2025

GESTER successfully participated in Shoes & Leather Vietnam 2025 (July 9-11), showcasing cutting-edge footwear testing machines. Visitors explored equipment like the Bally Resistance Flexing Tester and Martindale Abrasion Tester, with many expressing strong collaboration interest. Learn more about GESTER’s innovative solutions for the footwear industry.

What is the Safety Glove & Shoe Upper Cutting Tester GT-KC29

The Safety Glove & Shoe Upper Cutting Tester GT-KC29 is a high-precision testing instrument developed to measure the cut resistance performance of safety gloves and footwear uppers. In industrial and construction environments where sharp tools and metal edges pose significant injury risks, the GT-KC29 provides a reliable evaluation method by simulating real cutting motion. This tester meets EN 388 section 6.2, ISO 20344:2021 section 5.23, GB/T 20991 section 6.14, and other global standards, making it essential for PPE manufacturers, testing laboratories, and quality control departments. With automated operation, high repeatability, and multi-standard compliance, it helps companies improve product safety levels, enhance global competitiveness, and ensure superior protection for end users.

Leather Physical Properties Testing Guide

This guide details the 9 critical physical property tests essential for assessing leather quality: Tensile Strength, Tear Strength, Abrasion Resistance, Thickness, Water Vapor Permeability, Water Resistance, Shrinkage Temperature, Color Fastness to Friction, and Bending Strength. It covers the testing scope (natural leather, synthetic leather, finished products, semi-finished goods) and introduces specialized testing equipment required for each method (e.g., Universal Testing Machine, Elmendorf

Cobb Test Paper Absorption Tester GT-N07 - A Comprehensive Guide

The Cobb Test Paper Absorption Tester GT-N07 is an essential instrument for evaluating the water absorption properties of paper and paperboard materials. This test, commonly known as the Cobb method, helps determine how much water paper can absorb over a specified time under controlled conditions—crucial for assessing its suitability in printing, packaging, and coating applications.

How to Improve the Accuracy of a Martindale Tester

Ensuring the accuracy of your Martindale abrasion and pilling tester is critical for reliable textile quality control. This guide details essential steps, from precise sample preparation and correct machine operation to routine maintenance. We also explore how advanced testers, like the GESTER model with its dual-servo drive and tool-free operation, are engineered to eliminate common sources of error and enhance testing precision for superior results.

How to Choose Light Fastness Tester: Water-Cooled and Air-Cooled

Choosing between water-cooled and air-cooled light fastness testers depends on precision needs, budget, and application. Water-cooled testers (like GESTER GT-3000) offer superior spectral accuracy and stability for rigorous standards (e.g., automotive, coatings). Air-cooled models (like GESTER GT-D02A-1) provide energy efficiency and easier installation for routine QC. This guide compares cooling methods, features, and applications to help you select the optimal tester.

A Complete Guide to Martindale Testing by the Best Martindale Abrasion Tester Supplier

Durability is critical for textiles and footwear, and Martindale testing is the gold standard for measuring abrasion resistance and pilling performance. This guide dives into Martindale testing’s core mechanics (Lissajous figure multi-directional friction), strategies to boost testing accuracy (sample clamping, load calibration, abrasive standardization), and compliance with international standards (ISO 12947, ASTM D4966, EN). As a top Martindale abrasion tester supplier with 25+ years of expertise, GESTER International delivers high-precision instruments (Martindale Abrasion Tester GT-C13B, etc.) certified to ISO 9001 and trusted by SGS, Bureau Veritas, and other global testing institutes. Beyond machinery, GESTER offers global technical support, on-site installation, and calibration services. The guide also includes a procurement framework to help labs select tailored Martindale testing solutions. For reliable, standard-compliant durability testing, GESTER is your trusted partner.

What Are the Types of Color Fastness Testing for Fabrics?

Color fastness testing evaluates how well fabrics resist fading or bleeding under conditions like washing, rubbing, light exposure, and perspiration. Key tests include rubbing fastness, washing fastness, light fastness, perspiration fastness, and sublimation fastness. These tests ensure textiles maintain color integrity, prevent health risks, and meet quality standards. Learn about different testing methods and equipment used in the textile industry.

QUANZHOU GESTER INTERNATIONAL CO.,LTD gains certificates of ISO 9001, 3A and SGS Audited supplier etc. with advanced design concept, excellent manufacturing technology and strict quality control.

WeChat

Quick links

Products

Tel: +86-595-28886108
Fax: +86-595-22515221
E-mail: sales10@gester-instruments.com,

info@gester-instruments.com

Mobile/Whatapp/ Wechat:

+ 86 018059983973

Address: Block 402,4th floor, f buliding, shengfulan business Center, no.577 jitai road, economic and Technological development zone quanzhou of fujian.China.

Friendly Links: Physial Testing Instruments And Equipments