{
  "report": "ReviewCatLitter 2026 cat litter dust report",
  "source": "https://reviewcatlitter.com/cat-litter-dust-report-2026",
  "licence": {
    "name": "Creative Commons Attribution 4.0 International",
    "url": "https://creativecommons.org/licenses/by/4.0/"
  },
  "attribution": "ReviewCatLitter Editorial Team, ReviewCatLitter.com",
  "unit": "milligrams of airborne dust weighed while pouring a fresh box",
  "readingsTakenFrom": "2025-10-20",
  "readingsTakenTo": "2026-03-07",
  "note": "null means no weighing was taken. 0 is a measured zero.",
  "litters": [
    {
      "rank": 1,
      "product": "Ökocat Paper Pellet",
      "brand": "Ökocat",
      "materialGroup": "Pellets",
      "catalogType": "Paper Pellet",
      "dustMilligramsPerPour": 0,
      "dustScoreOutOfTen": 10,
      "testedThrough": "2025-11-06",
      "runLengthDays": 60,
      "cats": 3,
      "households": 2,
      "reviewUrl": "https://reviewcatlitter.com/reviews/okocat-paper-pellet"
    },
    {
      "rank": 2,
      "product": "Dr. Elsey's Ultra",
      "brand": "Dr. Elsey's",
      "materialGroup": "Clumping clay",
      "catalogType": "Clumping Clay",
      "dustMilligramsPerPour": 0.03,
      "dustScoreOutOfTen": 9.4,
      "testedThrough": "2026-03-07",
      "runLengthDays": 90,
      "cats": 6,
      "households": 3,
      "reviewUrl": "https://reviewcatlitter.com/reviews/dr-elseys-ultra"
    },
    {
      "rank": 3,
      "product": "Dr. Elsey's Cat Attract",
      "brand": "Dr. Elsey's",
      "materialGroup": "Clumping clay",
      "catalogType": "Clumping Clay",
      "dustMilligramsPerPour": 0.04,
      "dustScoreOutOfTen": 9.2,
      "testedThrough": "2026-03-05",
      "runLengthDays": 90,
      "cats": 10,
      "households": 4,
      "reviewUrl": "https://reviewcatlitter.com/reviews/dr-elseys-cat-attract"
    },
    {
      "rank": 4,
      "product": "Boxiecat Premium",
      "brand": "Boxiecat",
      "materialGroup": "Clumping clay",
      "catalogType": "Premium Clumping Clay",
      "dustMilligramsPerPour": 0.04,
      "dustScoreOutOfTen": 9,
      "testedThrough": "2026-03-01",
      "runLengthDays": 90,
      "cats": 6,
      "households": 3,
      "reviewUrl": "https://reviewcatlitter.com/reviews/boxiecat-premium"
    },
    {
      "rank": 5,
      "product": "Tuft + Paw",
      "brand": "Tuft + Paw",
      "materialGroup": "Loose plant litter",
      "catalogType": "Soy / Tofu",
      "dustMilligramsPerPour": 0.05,
      "dustScoreOutOfTen": 9.3,
      "testedThrough": "2025-11-10",
      "runLengthDays": 60,
      "cats": 2,
      "households": 1,
      "reviewUrl": "https://reviewcatlitter.com/reviews/tuft-paw"
    },
    {
      "rank": 6,
      "product": "Feline Pine",
      "brand": "Feline Pine",
      "materialGroup": "Pellets",
      "catalogType": "Pine Pellet",
      "dustMilligramsPerPour": 0.08,
      "dustScoreOutOfTen": 9.3,
      "testedThrough": "2025-10-20",
      "runLengthDays": 60,
      "cats": 3,
      "households": 2,
      "reviewUrl": "https://reviewcatlitter.com/reviews/feline-pine"
    },
    {
      "rank": 7,
      "product": "Sustainably Yours",
      "brand": "Sustainably Yours",
      "materialGroup": "Loose plant litter",
      "catalogType": "Natural Corn + Cassava",
      "dustMilligramsPerPour": 0.11,
      "dustScoreOutOfTen": 8.8,
      "testedThrough": "2026-03-06",
      "runLengthDays": 60,
      "cats": 4,
      "households": 2,
      "reviewUrl": "https://reviewcatlitter.com/reviews/sustainably-yours"
    },
    {
      "rank": 8,
      "product": "Naturally Fresh Walnut",
      "brand": "Naturally Fresh",
      "materialGroup": "Loose plant litter",
      "catalogType": "Walnut Shell",
      "dustMilligramsPerPour": 0.13,
      "dustScoreOutOfTen": 8.1,
      "testedThrough": "2025-11-18",
      "runLengthDays": 60,
      "cats": 4,
      "households": 2,
      "reviewUrl": "https://reviewcatlitter.com/reviews/naturally-fresh"
    },
    {
      "rank": 9,
      "product": "World's Best Cat Litter",
      "brand": "World's Best",
      "materialGroup": "Loose plant litter",
      "catalogType": "Corn Litter",
      "dustMilligramsPerPour": 0.15,
      "dustScoreOutOfTen": 7.8,
      "testedThrough": "2026-03-06",
      "runLengthDays": 60,
      "cats": 4,
      "households": 2,
      "reviewUrl": "https://reviewcatlitter.com/reviews/worlds-best"
    },
    {
      "rank": 10,
      "product": "Catalyst Soft Wood",
      "brand": "Catalyst",
      "materialGroup": "Loose plant litter",
      "catalogType": "Soft Wood / Pine",
      "dustMilligramsPerPour": 0.15,
      "dustScoreOutOfTen": 8.3,
      "testedThrough": "2025-11-20",
      "runLengthDays": 60,
      "cats": 6,
      "households": 3,
      "reviewUrl": "https://reviewcatlitter.com/reviews/catalyst"
    },
    {
      "rank": 11,
      "product": "Fresh Step Scented",
      "brand": "Fresh Step",
      "materialGroup": "Clumping clay",
      "catalogType": "Scented Clumping Clay",
      "dustMilligramsPerPour": 0.42,
      "dustScoreOutOfTen": 6.2,
      "testedThrough": "2026-03-03",
      "runLengthDays": 60,
      "cats": 3,
      "households": 2,
      "reviewUrl": "https://reviewcatlitter.com/reviews/fresh-step"
    },
    {
      "rank": 12,
      "product": "Arm & Hammer Clump & Seal",
      "brand": "Arm & Hammer",
      "materialGroup": "Clumping clay",
      "catalogType": "Scented Clumping Clay",
      "dustMilligramsPerPour": 0.45,
      "dustScoreOutOfTen": 6,
      "testedThrough": "2026-03-07",
      "runLengthDays": 60,
      "cats": 3,
      "households": 2,
      "reviewUrl": "https://reviewcatlitter.com/reviews/arm-hammer-clump-seal"
    },
    {
      "rank": 13,
      "product": "Arm & Hammer HardBall",
      "brand": "Arm & Hammer",
      "materialGroup": "Clumping clay",
      "catalogType": "Fast-Clumping Clay",
      "dustMilligramsPerPour": 0.48,
      "dustScoreOutOfTen": 6,
      "testedThrough": "2025-11-28",
      "runLengthDays": 60,
      "cats": 3,
      "households": 2,
      "reviewUrl": "https://reviewcatlitter.com/reviews/hardball"
    },
    {
      "rank": 14,
      "product": "Purina Tidy Cats",
      "brand": "Purina",
      "materialGroup": "Clumping clay",
      "catalogType": "Budget Clumping Clay",
      "dustMilligramsPerPour": 0.5,
      "dustScoreOutOfTen": 5.8,
      "testedThrough": "2026-02-28",
      "runLengthDays": 60,
      "cats": 4,
      "households": 2,
      "reviewUrl": "https://reviewcatlitter.com/reviews/tidy-cats"
    },
    {
      "rank": 15,
      "product": "Arm & Hammer Super Scoop",
      "brand": "Arm & Hammer",
      "materialGroup": "Clumping clay",
      "catalogType": "Budget Clumping Clay",
      "dustMilligramsPerPour": 0.52,
      "dustScoreOutOfTen": 5.7,
      "testedThrough": "2025-11-24",
      "runLengthDays": 60,
      "cats": 4,
      "households": 2,
      "reviewUrl": "https://reviewcatlitter.com/reviews/arm-hammer-super-scoop"
    },
    {
      "rank": 16,
      "product": "Frisco by Chewy",
      "brand": "Frisco",
      "materialGroup": "Clumping clay",
      "catalogType": "Budget Clumping Clay",
      "dustMilligramsPerPour": 0.58,
      "dustScoreOutOfTen": 5.5,
      "testedThrough": "2025-10-28",
      "runLengthDays": 60,
      "cats": 4,
      "households": 2,
      "reviewUrl": "https://reviewcatlitter.com/reviews/frisco"
    },
    {
      "rank": null,
      "product": "PrettyLitter",
      "brand": "PrettyLitter",
      "materialGroup": "Silica crystal",
      "catalogType": "Silica Crystal",
      "dustMilligramsPerPour": null,
      "dustScoreOutOfTen": 8.6,
      "testedThrough": "2026-03-04",
      "runLengthDays": 60,
      "cats": 2,
      "households": 2,
      "reviewUrl": "https://reviewcatlitter.com/reviews/prettylitter"
    }
  ],
  "averagesByMaterial": [
    {
      "materialGroup": "Pellets",
      "littersMeasured": 2,
      "averageMilligramsPerPour": 0.04,
      "lowest": "0.00 mg",
      "highest": "0.08 mg"
    },
    {
      "materialGroup": "Loose plant litter",
      "littersMeasured": 5,
      "averageMilligramsPerPour": 0.118,
      "lowest": "0.05 mg",
      "highest": "0.15 mg"
    },
    {
      "materialGroup": "Clumping clay",
      "littersMeasured": 9,
      "averageMilligramsPerPour": 0.34,
      "lowest": "0.03 mg",
      "highest": "0.58 mg"
    }
  ]
}