DustCard™ — Submicron Particle Sampler

Catch the corrosive particles your sensors can't see.

Most data center sensors watch airborne particles down to 0.5 micron and stop there — missing the smaller, largely ionic, highly corrosive particles down to the nano level. DustCard™ is a passive sampling card that uses electrostatic attraction to capture all of it, including nanoparticles, acting like an environmental black box for your rack intakes.

Captures down to the nano level

Electrostatic nanoparticle capture

ISO 14644-1 particle concentration

ISO 8502-9 ionic contamination

Mount on rack intakes in seconds

Order Now — $87 → View Lab Report

DustCard submicron particle sampler card with barcode and start/end date fields

Pack of 10

Cards per pack — mount one at every rack intake

$87

Pack price — plus $45 flat-rate worldwide shipping per order

0.1µm

Captures particles down to the nano level

Intl. Patents Pending

Process

How DustCard™ Works

1. Mount

Peel the adhesive tag and stick the card directly to a rack door or intake grille, exposed to direct airflow. Recommended on all or most rack intakes, since strong local airflow means particle events are often highly localized.

2. Record

Leave the card in place as a continuous environmental black box, quietly recording particle events — from routine background dust to sudden events like smoke intrusion or extinguishing-gas discharge.

3. Mail

Whenever you need an environmental report — for a site audit or after a suspected particle event — remove the card and send it to our lab for analysis.

4. Report

Receive a lab report covering air particle concentration per ISO 14644-1 and ionic contamination per ISO 8502-9 — the documentation auditors and insurers ask for.

Pack of 10

The Kit

One Card.
Every Rack Intake Covered.

A pack of 10 passive particle sampling cards, ready to mount and send for lab analysis whenever you need an answer. Each card uses electrostatic attraction to pull in and hold particles down to the nano level — including the ionic, corrosive fraction that standard 0.5-micron monitors leave invisible.

Electrostatic Capture Surface — attracts and holds nanoparticles that would otherwise stay suspended and pass straight by a passive card.
10 DustCard™ Sampling Cards — each with a printed barcode, start/end date and location fields for clean recordkeeping.
Adhesive Mounting Tag — stick straight to rack doors or intake grilles, exposed to direct airflow, no tools required.
Environmental Black Box — leave in place to passively record particle events over time, not just a single snapshot.
Instructions — a short, clear mounting guide so placement takes minutes and needs no specialist.
Lab Analysis On Request — send any card in for a report per ISO 14644-1 (air particle concentration) and ISO 8502-9 (ionic contamination), whenever you need one for an audit or incident review.

Lab Analysis

What the DustCard™ Report Tells You

Standard data center monitoring watches airborne particles down to 0.5 micron and stops there. DustCard™ is built to catch everything below that, too — the submicron and nanoscale fraction that is often ionic and highly corrosive. A lab report covers particle concentration, ionic contamination and, where relevant, what that combination means for the risk to your hardware.

RESULT 01

Air Particle Concentration

ISO 14644-1 · particles per cubic metre, by size class

The card is analyzed to determine airborne particle counts across size bands, down to the submicron and nano range, and reported against the ISO 14644-1 cleanliness classification used for controlled environments.

ISO Class	Typical Setting	Status
ISO Class 6–7	Well-controlled data hall	✓ Pass
ISO Class 8	Elevated particle load	⚠ Marginal
Above ISO Class 8	Outside recommended range	✗ Fail — High risk

Why it matters: Most rack-mounted or room-level sensors are calibrated to flag particles at 0.5 micron and above, so a room can read "clean" on those instruments while still carrying a heavy submicron and nanoparticle load.

RESULT 02

Ionic Contamination

ISO 8502-9 conductometric method · µg/cm²

The card is eluted with a precise volume of deionised water and the extract's conductivity is measured, then converted to a total soluble salt reading — capturing the ionic, corrosive load that nanoscale particles disproportionately carry.

Result	Limit	Status
< 5 µg/cm²	Electronics limit	✓ Pass
5 – 10 µg/cm²	Exceeds electronics limit	⚠ Marginal
> 10 µg/cm²	Exceeds building/insurer limit	✗ Fail — High risk

Why ionic matters: Nanoparticles carry far more surface area per unit mass than larger dust, which makes them disproportionately reactive once deposited on copper traces and solder joints.

RESULT 03

Submicron & Nanoparticle Risk

Particle size vs. failure mechanism

Particles below roughly 0.1 micron don't behave like ordinary dust — they stay suspended indefinitely and act more like a corrosive fluid moving through your airflow. The report flags which mechanism is most relevant to your reading.

Particle Size	Primary Mechanism	Status
0.5 µm+	Settled dust, thermal insulation	✓ Monitored elsewhere
0.1 – 0.5 µm	Fills heat sink micro-vortices, chokes cooling	⚠ Often missed
< 0.1 µm (nano)	ESD infiltration, catalytic creep corrosion	✗ High risk if elevated

Why this matters: Nanoparticles are small enough to settle inside chip-level gaps and are highly reactive, so they can trigger localized electrostatic discharge and silent, non-catastrophic data corruption well before any visible failure occurs.

The Science

Why Submicron & Nanoparticles Deserve Their Own Sampler

Data centers routinely watch particles down to 0.5 micron and stop there — but the physics changes below that. Sub-0.1-micron nanoparticles no longer settle like ordinary dust; they undergo Brownian motion, collide with gas molecules, and stay suspended indefinitely. Combined with the high-velocity airflow of modern AI and HPC clusters, they behave less like dust and more like a continuous, corrosive fluid moving through the infrastructure. A plain adhesive or gravity-settling surface largely misses this fraction, which is why DustCard™ uses an electrostatic capture surface: the same static charge that lets nanoparticles cling to circuit boards is what pulls them onto the card instead.

Nanoparticles threaten hardware through several distinct mechanisms. Because they're roughly the size of the spacing between modern chip circuits, they can settle inside multi-chip modules or under Ball Grid Arrays, carrying static charge that triggers localized electrostatic discharge. Their tiny size also means an enormous surface-area-to-volume ratio, so combustion byproducts like carbon black or diesel exhaust become far more chemically reactive at the nanoscale — accelerating "creep corrosion" on copper traces and silver solder joints, and producing subtle, silent data corruption long before a server visibly fails.

Nanoparticles also disrupt cooling itself. Rather than settling as a blanket on a heat sink the way larger dust does, they lodge in the micro-vortices between the ultra-fine fins of high-performance GPU and CPU heat sinks, choking the heat transfer coefficient and forcing fans to spin faster — quietly raising energy consumption along the way.

These particles arrive from outdoor air pollution and wildfire smoke, from the mechanical wear of fans and air handling units, and from live construction work happening nearby. Standard MERV 8 or MERV 13 filters are largely transparent to them. A card mounted directly on the rack intake, exposed to real airflow, is what catches what the room-level sensors miss.

Monitoring Rationale

Why Monitor Every Rack Intake?

Three reasons DustCard™ belongs at rack intakes, not just at the room level.

Particle events are localized

Strong, uneven airflow through a data hall means a particle event at one rack often doesn't show up at another. A single room-level sensor can miss it entirely, which is why mounting a card on every rack door or intake grille matters.

It acts as a continuous black box

Unlike a one-off spot check, a card left in place keeps recording. If a suspected event occurs — smoke intrusion, an extinguishing-gas discharge — you have a record to send for analysis instead of a guess.

It underpins audits and insurance claims

A dated report referencing ISO 14644-1 and ISO 8502-9 is the kind of evidence auditors and insurers ask for when assessing a site audit or a damage claim tied to a particle event.

Pricing

One Pack. One Price.
No Hidden Fees.

A pack of 10 DustCard™ samplers covers ten rack intakes, each acting as its own environmental black box. Lab analysis per ISO 14644-1 and ISO 8502-9 is available whenever you need a report. Worldwide UPS shipping is a flat $45 per order.

10 DustCard™ Sampling Cards — mounts in seconds, no specialist required.
Adhesive Mounting Tag — on every card, for rack doors and intake grilles.
Instructions — clear, simple mounting steps, no specialist required.
Lab Report On Request — air particle concentration and ionic contamination per ISO 14644-1 and ISO 8502-9.

DustCard™ Pack of 10

US$87

Plus US$45 flat-rate worldwide UPS shipping per order

Ships worldwide via UPS for a flat US$45 per order. Adhesive mounting tags and instructions included. Lab analysis available on request whenever you need a report.