Filtering half masks
Geometry, media selection, developed surface, breathing resistance and comfort level, fit.
XALPESAID · Division of XALPES LLC
Medical devices & personal protective equipment
Respiratory protection first: filtering half masks, CBRN filtering facepieces, filtration media and assemblies, ergonomics and human factors. XALPESAID designs, characterizes and documents; qualification phases are prepared, not claimed.
Scope
Respiratory protection, filtration, human factors.
A protective mask is an arbitration between filtration and breathing effort. XALPESAID works on both terms: the media and assembly that filter, and the geometry, fit and resistance that the wearer experiences.
The division covers filtering half masks and filtering facepieces for CBRN environments, filtration media and multilayer assemblies, developed-surface and form-factor design, ergonomics and human factors, and the technical files that accompany them.
Approach: design, characterization on our own benches, technical file, then preparation of the qualification phases required by each target market. XALPESAID makes no CE, FDA, NIOSH or other regulatory claim; where such steps are required, they are conducted with the competent bodies and qualified third-party laboratories.
Fields
Four fields of work.
CBRN filtering facepieces
Facepieces intended for chemical, biological, radiological and nuclear environments; short-duration civil protection concepts.
Filtration media & assemblies
Multilayer stacks, pressure drop and efficiency trade-offs, simulation with the XALPES Filtration Lab before prototyping.
Ergonomics & human factors
Fit, seal line, dead space, wearing duration and the breathing-comfort classification of the XRS scale.
Programs
XALPESAID programs.
NUCLEAID — complete program
From an idea and an existing patent base to a finished, marketable product: design, characterization, patent filed and managed, and the creation of a reference where none existed.
NBC-1 protective mask
Confidential research and development program currently under intellectual property protection. Additional information will be released after completion of the patent filing process.
XRS scale — XRS 001:2026
Breathing-comfort classification of a mask from breathing resistance. First edition published 2026-08 under CC BY-ND 4.0. A heuristic, not a standard.
FFC marking — in preparation
New marking for filtering facepieces intended for CBRN environments. Specification and conditions of use will be published after the filing currently in progress.
NBC-1 is a confidential program under intellectual property protection. No performance data is published on this site.
Approach
Design, characterize, document, prepare.
Design
Geometry, media, developed surface, form factor.
Characterization
Pressure drop, specific resistance, fit, product performance on our benches.
Technical file
Test reports, risk assessment, traceability, development documentation.
Qualification readiness
Preparation of the phases conducted by third-party laboratories and competent bodies where required.