AI for industrial filter manufacturers, tested on specs your applications people already answered.

Two rating systems can sit on one customer's paper. ASHRAE 52.2 produces a MERV. ISO 16890 sorts a filter by ePM1, ePM2.5 and ePM10, and its introduction says those values are compared only within the same class. ASHRAE's filtration FAQ publishes an approximate table between the two and then warns that they do not reflect the same testing: ISO 16890 has a conditioning step for charged media, and 52.2 catches that only through its optional Appendix J, which gives a MERV-A. So a rating line stays in the customer's own terms until someone on your staff decides what it means for your product.

Each channel writes its request differently. A plant's maintenance buyer may send one page of a spec, or whatever the label on a worn unit still shows. An HVAC contractor forwards a Division 23 section; New York State's master specification for HVAC air cleaning devices is largely bracketed choices of size, media and resistance, with a drafter's caution that some thicknesses come only in UL Class 2. A state purchasing contract can be terser: North Carolina's air filter specification sorts product into types, styles and grades and lets the requisition name them. Your applications people have already answered every one of those shapes, and the closed quotes show how.

Standards keep their old names in the paperwork. UMBC's August 2024 filter bid holds a supplier to the tolerances in Section 7.4 of what it calls ARI Standard 850-93, and New York's section points at ARI 850 too. North Carolina cites the same subject as ANSI/AHRI 850 (I-P)-2013, and the University of Michigan's master specification prints that title as ANSI/ASHRAE 850. A reader who doesn't know this trade would count those as different requirements, which is exactly the kind of reading your reviewer can score.

Dust collection depends on what the media is laid on. EPA's Air Pollution Control Cost Manual lists a temperature limit and acid and alkali resistance fabric by fabric, and for a PTFE membrane each of those entries reads depends on backing. A customer's line that says membrane has not finished its sentence, and the test report that goes with the order has to name the same construction the quote did. That link between the two desks is why these jobs come first.

Liquid filters add rulebooks of their own. FDA's 21 CFR 177.2260 covers resin-bonded filters used in producing and preparing food and lists the fibers allowed, among them cellulose pulp, cotton, nylon and rayon. 21 CFR 211.72 says filters used in making injectable drugs shall not release fibers, with a stated exception. A customer who writes FDA compliant might mean either one or neither, so the draft quotes the words and your staff decides. We name these documents to show the work, and nothing here is legal or engineering advice.

One limit covers both jobs. Nothing in the proof of concept touches your ERP, a live quote or a live certificate, and nothing in it selects a filter, judges a test result or signs a certificate. An applications person approves every quote and a quality manager signs every report. Defense and aerospace work stays out.