#merv13
Live, measured metrics for the hashtag #merv13 from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #merv13
This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.
Day-by-day usage
measured · mastodon.social (Mastodon public tags API) · fetched 2026-10-02 08:20 UTCNo measured public usage for #merv13 in the last 7 days. That is a real result, and a good one to know: this hashtag is wide open right now. We show a dash before we ever show a made-up number. Browse the trending index for tags with live measurements.
Related hashtags
measured · mastodon.social (Mastodon public search API) · fetched 2026-10-02 08:20 UTCNo related tags with measured usage found for #merv13.
Live pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-10-02 08:20 UTCEverything below is measured over the latest 18 public posts (spanning ~32026 hours).
Posting hours (UTC) — busiest: 10:00
Languages: English (18)
Avg boosts / post: 4.8
Top of the latest posts
#DIY box fan filters – #CorsiRosenthal box "Also known as a Corsi-Rosenthal box, this DIY method of building your own air filter with #MERV13 furnace filters and a box fan are an easy and cost-effective way to help clear indoor air from air
eed new filters for your Corsi-Rosenthal box? 💨 Donate A Mask has a 12-pack of Replacement MERV-13 Filters - AAF Flanders on sale for $299.99. Get ready for #WildfireSmoke. Pick up a 12-pack today! Sale ends May 23. ⏰ 🛍 https://buymask.ca
Pro tip with Canada fires if you're in a safe place but still get smoke from them: if you don't have a furnace that can accept MERV13 filters, you can duct tape one to the front of a box fan if the area to filter is small enough, or do the
What “merv13” means
WikipediaMerv, also called the Merve Oasis, was a major Iranian city in Central Asia, located on the historical Silk Road, near today's Mary, Turkmenistan. Human settlements on the site of Merv existed from the 3rd millennium BC until the 18th century AD. It changed hands repeatedly throughout history. Under the Achaemenid Empire, it was the center of the satrapy of Margiana. It was subsequently ruled by Hellenistic Kings, Parthians, Sasanians, Arabs, Ghaznavids, Seljuqs, Khwarazmians and Timurids, among
“Merv” on Wikipedia (CC BY-SA) →#merv13 across platforms
every network with a public tag surfaceFollow #merv13 straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.
Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/merv13