A quarantine room is a distance problem before it is a cleaning problem. Keep a new cat 2 m from every resident cat, give the room its own airflow so air leaves rather than circulates, hold the full 14 days, and run 3 disinfection steps at entry and exit. Get those 4 numbers right and most of the risk is already handled before anyone buys a spray bottle.
What the room has to do, in 3 jobs
Job 1 is separation: a solid door, no shared litter scoop, no shared bowls. Job 2 is directional airflow, so air moves from the clean side to the exit and not back into the cattery. Job 3 is a traffic rule that a tired person can still follow at 2 a.m. A spare bedroom with a window works; a wire pen in the main room does not, because a 2 m gap through mesh is not a barrier. Respiratory and enteric pathogens travel on hands, sleeves, and dust far more often than across the room.
The 2-meter rule and why the direction matters
Two meters is the working minimum between the quarantine door and the nearest resident cat area, and 3 m is better if the layout allows. Distance alone is not enough: put the room on the downwind side of the cattery, keep the door closed, and never set the quarantine room between the entrance and the kitten room. If air from the quarantine room crosses a shared corridor first, the 2 m gap is decorative. A ribbon taped across the corridor at 2 m from the door marks the line visitors stop at.
Separate ventilation without construction
You do not need negative pressure to improve on a shared vent. Three practical options, cheapest first: a window opened 5 cm with the door shut so air leaves that way; a 20 cm box fan set in the window blowing outward, sealed with foam board so it pulls rather than pushes; and a small HEPA unit inside the room running on low, which cuts airborne dust without pretending to be a barrier. Change or vacuum the filter every 30 days. Do not run a fan that blows from the quarantine room into the corridor.
The 14-day clock, day by day
Day 0 is intake: the cat goes straight into the room, the carrier is wiped before it leaves, and the door closes. Days 1 to 3 are for settling and quiet observation, with food and litter logs started immediately. Days 4 to 7 are for the first full cleaning cycle and a weight check on a kitchen scale to 10 g. Days 8 to 13 repeat the cleaning cycle every 48 hours. Day 14 is release only if the log is clean for 14 days; if anything was flagged, the clock restarts from the last flagged day.
The 3 disinfection steps, in order
Step 1 is physical removal: scoop litter, bag bedding, wipe up all visible organic matter. Step 2 is detergent wash with a fresh cloth, because a disinfectant applied over a film of protein does not work; change the cloth between surfaces. Step 3 is the disinfectant itself, applied wet, left for the label's contact time, usually 10 minutes, then air-dried rather than towel-dried. Skipping step 1 is the most common failure, and it is invisible: the surface looks clean and tests dirty.
Traffic, clothing, and the 1-cat rule
One person handles the quarantine cat whenever possible, and that person visits the quarantine room last, never first. Keep a dedicated pair of shoes and a smock on a hook inside the door; hands wash for 20 seconds on the way in and on the way out. No shared scoops, no shared brushes, no shared towels, and no resident cat carried into the room for company. If a second new cat arrives during the 14 days, it goes into a separate space rather than sharing, because two unknown health statuses in one room is not quarantine.
Log sheet that survives a busy week
Two checks a day, 5 minutes each, written down rather than remembered. Record appetite, litter output, sneezing or eye discharge, and body weight twice in the 14 days. Room temperature 20 to 24 C and humidity 40 to 60 percent are the working range; a dry room under 30 percent humidity makes respiratory signs harder to judge.
| Day | Task | Minutes | Record |
|---|---|---|---|
| 0 | Intake, carrier wipe, door closed | 15 | Weight, source, entry time |
| 1 to 3 | Observation only, 2 checks daily | 10 | Food, litter, sneeze count |
| 4 to 7 | First full clean, weight check | 45 | Weight to 10 g |
| 8 to 13 | Clean every 48 hours | 40 | Any new sign, date flagged |
| 14 | Release review and final clean | 60 | 14 clean days confirmed |
Turnover between cats
After the cat leaves, keep the room empty for 48 hours, then run the 3 steps again from the ceiling down: walls, surfaces, then floor, with the floor last and the cloth discarded. Bedding that cannot be washed at 60 C is thrown out. Litter boxes are replaced rather than refilled, because plastic scratches hold organic matter that no wipe reaches. A room turned over in 3 hours looks ready and is not.
When the 14 days should not end
Do not release on day 14 if there was any soft stool, any sneezing, or a weight drop over 5 percent at any point in the window. Extend to 21 days and ask a veterinarian before mixing cats; some signs need testing rather than watching. A cat that has been treated for a skin or ear condition also needs the veterinarian's clearance, not the calendar's. The room is a buffer, not a diagnosis, and nothing in the cleaning schedule replaces a clinical exam.
The intake paperwork that makes this work is the same record set described in the cattery record keeping guide. If this is your first arrival, read the new arrival quarantine walkthrough first, since it covers the first 24 hours in more detail. Ongoing supply and cleaning costs sit in the range shown by the cost calculator.
6 steps to set this up this week
- Pick a room with a solid door and a window, at least 2 m from resident cats.
- Mark the 2 m line with tape and brief every visitor on it.
- Set the fan to blow outward and seal the window gap with foam board.
- Post the 3 disinfect steps on the inside of the door, in order.
- Print the 14-day log with columns for food, litter, weight, and signs.
- Hang a dedicated smock and shoes inside the door before the cat arrives.
Frequently asked
Is 2 meters really enough between a new cat and my other cats?
Two meters with a solid closed door is the working minimum, and 3 m is better. Distance only counts as separation when the door stays shut and the room sits downwind of the cattery. A mesh pen across the room does not satisfy the 2 m rule, because hands and dust carry most pathogens.
Can I shorten the 14 days if the new cat looks healthy?
No. Signs often appear between day 5 and day 12, and a cat can shed before it looks unwell. Release on day 14 only when the log shows no soft stool, no sneezing and no weight drop over 5 percent. If anything was flagged, restart the count from that day.
What are the 3 disinfection steps in the right order?
Remove all visible organic matter first, then wash with detergent and a fresh cloth, then apply disinfectant wet and leave it for the label contact time, usually 10 minutes. Skipping the removal step is the usual failure: disinfectant over a protein film does nothing, and the surface still looks clean.