Product Overview

The KR‑2502B breathing resistance analyser is dedicated PPE lab‑testing instrument for filtering respirators. It quantifies inhalation and exhalation pressure‑drop values under regulated airflow conditions, which reflects breathing burden for mask wearers.

Fitted with a standard anthropomorphic head‑form, the equipment simulates real‑world human respiratory conditions. It complies with EN 149 specification for respiratory protective half‑masks. This unit is widely used in mask production QC labs, PPE hardware R‑D departments and third‑party personal‑protective‑equipment‑verification institutes for finished‑product performance validation.

Core Product Competitive Advantages

1. Dual‑language touch‑screen human‑machine‑interface Colour touch‑panel supports English‑Chinese bilingual menus, intuitive human‑machine dialogue workflow. Test‑parameter setup, real‑time data monitoring and status prompting are all completed on screen, lowering operator‑skill threshold.
2. On‑board mini thermal print module Built‑in thermal printer enables instant on‑site hard‑copy output of test‑results. Operators acquire physical test‑reports directly without connecting external peripheral printers, convenient for lab‑record filing.
3. High‑precision flow & pressure sensing assembly Equipped with high‑accuracy digital flow‑meter and micro differential‑pressure sensor. Stable signal acquisition guarantees repeatable measurement data for inhalation‑exhalation resistance assessment.
4. Automatic gas‑path switching mechanism Integrated solenoid‑driven pipeline switch unit. It automatically toggles between inhalation‑mode and exhalation‑mode, avoiding manual tube‑reconnection mistakes and reducing human‑caused setup‑errors during batch‑sample testing.
5. Standard 3D‑printed anthropomorphic head‑form Precision‑manufactured dummy head accurately replicates real mask‑fitting geometry. It restores actual wearing state of respirator samples and improves authenticity of resistance‑test outcomes.

Complete Technical Parameter Table

Compliance Standards: EN 149 Respiratory protective devices‑Filtering half masks against particles

Standard Complete Test Operating Workflow

1. Pre‑Test Preparation Place main unit on level solid lab‑bench, lock positioning anchor feet. Switch‑on mains‑power‑supply. Complete instrument self‑check. Inspect pipeline connections, head‑form fixture and printer paper status. Select target test‑mode (inhalation / exhalation) via touch‑screen and configure test‑flow parameters according to standard‑requirements.
2. Specimen Mounting Fit test respirator securely onto 3D‑printed standard head‑form. Adjust mask straps to simulate real‑wearing tightness, check the sealing boundary to prevent air‑leakage which would skew resistance readings.
3. Launch Breathing‑Resistance Measurement Trigger test‑start command. System automatically switches gas‑path according to selected test‑mode. Air‑pump delivers calibrated airflow through mask specimen. Pressure‑drop data is collected and displayed in real‑time on HMI.
4. Result Recording & Report Printout When measurement cycle finishes, final inhalation / exhalation resistance value is locked on‑screen. Operators may print test‑report directly using the built‑in thermal printer for lab‑document‑archiving.
5. Post‑Test Tidying Remove mask sample from head‑form. Check for dust accumulation on pipeline inner walls. Shut‑down equipment power‑supply upon finishing batch‑testing. Periodically calibrate flow‑meter and differential‑pressure sensor to sustain measuring‑accuracy.

Wide Industrial Application Scenarios

Respirator & Mask‑Manufacturing Enterprises

Batch quality‑control breathing‑resistance inspection for FFP‑series filtering half‑masks; performance comparison during new‑product and filter‑material development.

PPE Material‑R‑D Departments

Evaluate how filter‑layer structure and mask‑body design influence breathing‑comfort index, optimise product‑design solutions.

Occupational‑Safety & Medical‑Device‑Inspection Institutes

Conduct EN 149‑compliant breathing‑resistance verification for protective‑respirator products.

University Safety‑Protection‑Material‑Research‑Laboratories

Experimental‑teaching‑equipment for respirator‑ergonomics and respiratory‑performance‑related research.

Third‑Party Accredited‑PPE‑Testing‑Organizations

Carry‑out formal breathing‑resistance assessment and generate inspection‑documents for product‑certification‑audits.

Standard Factory‑Full‑Delivery Kit

1. KR‑2502B mask breathing‑resistance‑tester main cabinet‑unit
2. 3D‑printed standard anthropomorphic head‑form assembly
3. Built‑in thermal print module
4. Position‑fixing anchor feet set
5. Power‑supply connecting‑cable
6. Spare‑fuse kit
7. Multilingual printed‑operation‑manual complying with EN 149‑test‑specifications
8. Factory‑issued performance‑inspection‑certificate

Optional spare‑parts & custom‑options: extra head‑form variants, printer‑paper rolls, custom‑voltage power‑supply‑adaptation.

Global Distributor & After‑Sales‑Support

We provide remote‑one‑on‑one operational guidance covering test‑mode‑selection, mask‑mounting procedure, parameter‑configuration and routine‑preventive‑maintenance. Spare‑parts stock includes sensor‑components, printer‑consumables and pipeline‑accessories. Bulk‑order customers can apply for custom‑power‑supply‑voltage variants for overseas‑market deployment. Regional‑exclusive‑agent privileges contain priority‑production‑scheduling, OEM private‑branding‑services and complete‑set high‑definition product‑marketing‑image‑resources.

Product‑Banner‑Marketing‑Slogan

KR‑2502B Mask Breathing Resistance Tester | EN149‑Compliant Inhalation‑Exhalation‑Pressure‑Drop‑Evaluator For Respirator‑PPE‑QC‑Certification‑Testing

Core‑Feature‑Labels‑For‑Product‑Images

EN149‑Compliant, Inhalation‑&‑Exhalation‑Resistance‑Test, 0‑200L/min‑Flow‑Range, 0‑1000Pa‑Differential‑Pressure‑Measurement, Bilingual‑Touch‑Screen‑Control, Built‑In‑Mini‑Thermal‑Printer, Auto‑Gas‑Path‑Switching‑Module, 3D‑Printed‑Standard‑Head‑Form, ≥200L/min‑Air‑Pump‑Capacity, Position‑Anchor‑Feet‑Design, Respirator‑Breathing‑Comfort‑Performance‑Evaluation

Safety‑Operation‑Reminder

Check all air‑pipe connections for tight‑seal before each test‑run. Perform regular sensor calibration to guarantee measurement‑credibility. Replace printer paper when power is off. Ensure reliable equipment‑grounding before power‑on.