diff --git a/app/src/components/Warehouse3D.tsx b/app/src/components/Warehouse3D.tsx
index 762631e..395f7cc 100644
--- a/app/src/components/Warehouse3D.tsx
+++ b/app/src/components/Warehouse3D.tsx
@@ -631,7 +631,7 @@ export function WarehouseModel() {
         <meshStandardMaterial color={isDark ? "#475569" : "#2d3748"} transparent={(viewMode as string) === 'airflow'} opacity={(viewMode as string) === 'airflow' ? 0.35 : 1} />
       </mesh>
 
-      {(viewMode as string) === 'airflow' && <AirflowSystem windAngle={windAngle} width={width} length={length} height={height} permeabilityCase={permeabilityCase} />}
+      {(viewMode as string) === 'airflow' && <AirflowSystem windAngle={windAngle} width={width} length={length} height={height} permeabilityCase={permeabilityCase} wallCpe={wallCpe} roofCpe={roofCpe} cpi={cpi} />}
 
       {/* === RÓTULOS 3D === */}
       {showMainWalls && viewMode === 'solid' && (
diff --git a/app/src/components/three/AirflowSystem.tsx b/app/src/components/three/AirflowSystem.tsx
index 034273f..69ab7b6 100644
--- a/app/src/components/three/AirflowSystem.tsx
+++ b/app/src/components/three/AirflowSystem.tsx
@@ -1,102 +1,191 @@
-import { useRef, useMemo } from 'react';
+import { useRef, useMemo, useEffect } from 'react';
 import { useFrame } from '@react-three/fiber';
 import * as THREE from 'three';
 
+interface WallCoefficients {
+  A: number; B: number; C: number; D: number;
+}
+interface RoofCoefficients {
+  E: number; F: number; G: number; H: number; I: number; J: number;
+}
+
 interface AirflowSystemProps {
-  windAngle: number;
+  windAngle: 0 | 90;
   width: number;
   length: number;
   height: number;
   permeabilityCase: string;
+  wallCpe: WallCoefficients;
+  roofCpe: RoofCoefficients;
+  cpi: number;
 }
 
-export function AirflowSystem({ windAngle, width, length, height, permeabilityCase }: AirflowSystemProps) {
-  const count = 300;
+export function AirflowSystem({ windAngle, width, length, height, permeabilityCase, wallCpe, roofCpe, cpi }: AirflowSystemProps) {
+  const count = 1000;
   const meshRef = useRef<THREE.InstancedMesh>(null);
+  
   const particles = useMemo(() => {
     const temp = [];
     for (let i = 0; i < count; i++) {
       temp.push({
         position: new THREE.Vector3(
-          (Math.random() - 0.5) * (width * 3),
-          Math.random() * height * 2,
-          (Math.random() - 0.5) * (length * 3)
+          (Math.random() - 0.5) * (width * 4),
+          Math.random() * (height * 3),
+          (Math.random() - 0.5) * (length * 4)
         ),
-        speed: 0.1 + Math.random() * 0.2,
+        baseSpeed: 0.15 + Math.random() * 0.2,
         wobbleSpeed: Math.random() * 0.05,
         wobbleOffset: Math.random() * Math.PI * 2,
+        currentCpe: 0,
       });
     }
     return temp;
   }, [count, width, length, height]);
 
   const dummy = useMemo(() => new THREE.Object3D(), []);
+  const colorObj = useMemo(() => new THREE.Color(), []);
+
+  // Inicializa cores
+  useEffect(() => {
+    if (meshRef.current) {
+      for (let i = 0; i < count; i++) {
+        meshRef.current.setColorAt(i, new THREE.Color('#ffffff'));
+      }
+      if (meshRef.current.instanceColor) {
+        meshRef.current.instanceColor.needsUpdate = true;
+      }
+    }
+  }, [count]);
 
   useFrame((state) => {
     if (!meshRef.current) return;
     const time = state.clock.elapsedTime;
     const isParallel = windAngle === 90;
 
-    // Wind direction vector
-    const dir = isParallel ? new THREE.Vector3(0, 0, 1) : new THREE.Vector3(1, 0, 0);
+    // Vetor direção do vento
+    const windDir = isParallel ? new THREE.Vector3(0, 0, 1) : new THREE.Vector3(1, 0, 0);
     
-    // Bounds
     const halfW = width / 2;
     const halfL = length / 2;
     
+    const margin = 1.0;
+    const roofAvgCpe = (roofCpe.E + roofCpe.F + roofCpe.G + roofCpe.H + roofCpe.I + roofCpe.J) / 6;
+
     particles.forEach((p, i) => {
-      // Move particle
-      p.position.addScaledVector(dir, p.speed);
+      // Determinar a zona e o Cpe local
+      let localCpe = 0;
+      let deflectY = 0;
+      let deflectX = 0;
+      let deflectZ = 0;
 
-      // Add slight turbulence
-      p.position.y += Math.sin(time * p.wobbleSpeed * 10 + p.wobbleOffset) * 0.02;
-      
-      const isInsideX = p.position.x > -halfW && p.position.x < halfW;
-      const isInsideZ = p.position.z > -halfL && p.position.z < halfL;
-      const isInsideY = p.position.y > 0 && p.position.y < height;
-      const isInsideBuilding = isInsideX && isInsideZ && isInsideY;
+      const px = p.position.x;
+      const py = p.position.y;
+      const pz = p.position.z;
 
-      if (isInsideBuilding && permeabilityCase === 'airtight') {
-        // Push particle up to simulate wind going over the roof
-        p.position.y += 0.2;
+      const inX = px >= -halfW - margin && px <= halfW + margin;
+      const inZ = pz >= -halfL - margin && pz <= halfL + margin;
+      const inY = py >= 0 && py <= height;
+      const aboveRoof = py > height && py <= height + 3 && inX && inZ;
+
+      if (inY && inX && inZ) {
+        // Perto das paredes
+        if (Math.abs(pz - (-halfL)) < margin) localCpe = wallCpe.A;
+        else if (Math.abs(pz - (halfL)) < margin) localCpe = wallCpe.B;
+        else if (Math.abs(px - (-halfW)) < margin) localCpe = wallCpe.C;
+        else if (Math.abs(px - (halfW)) < margin) localCpe = wallCpe.D;
+        else localCpe = cpi; // Dentro do prédio
+        
+        // Se bateu na parede a barlavento, desvia o fluxo (Aerodinâmica)
+        const isAirtight = permeabilityCase !== 'four-equally-permeable';
+        if (isAirtight) {
+          if (windAngle === 0 && px < -halfW + margin) {
+            deflectY = 0.1; // Sobe
+            deflectZ = pz > 0 ? 0.05 : -0.05; // Vai pros lados
+          } else if (windAngle === 90 && pz < -halfL + margin) {
+            deflectY = 0.1; // Sobe
+            deflectX = px > 0 ? 0.05 : -0.05; // Vai pros lados
+          }
+        }
+      } else if (aboveRoof) {
+        localCpe = roofAvgCpe;
+        // Vórtice no telhado
+        p.position.y += Math.sin(time * 5 + p.wobbleOffset) * 0.03;
       }
 
-      // Reset if it goes too far
+      // Suaviza a transição de Cpe para a cor não piscar
+      p.currentCpe += (localCpe - p.currentCpe) * 0.1;
+
+      // Modifica velocidade com base no Cpe (Pressão > 0 diminui vel, Sucção < 0 aumenta vel)
+      const speedModifier = Math.max(0.2, 1 - (p.currentCpe * 0.5));
+      const currentSpeed = p.baseSpeed * speedModifier;
+
+      // Move a partícula
+      p.position.x += windDir.x * currentSpeed + deflectX;
+      p.position.y += deflectY;
+      p.position.z += windDir.z * currentSpeed + deflectZ;
+
+      // Turbulência natural
+      p.position.y += Math.sin(time * p.wobbleSpeed * 10 + p.wobbleOffset) * 0.01;
+
+      // Recicla partículas que saem da tela
       if (isParallel) {
-        if (p.position.z > halfL + 20) {
-          p.position.z = -halfL - 20;
-          p.position.y = Math.random() * height * 1.5;
-          p.position.x = (Math.random() - 0.5) * (width * 2);
+        if (p.position.z > halfL + 30) {
+          p.position.z = -halfL - 30;
+          p.position.y = Math.random() * (height * 2);
+          p.position.x = (Math.random() - 0.5) * (width * 3);
+          p.currentCpe = 0;
         }
       } else {
-        if (p.position.x > halfW + 20) {
-          p.position.x = -halfW - 20;
-          p.position.y = Math.random() * height * 1.5;
-          p.position.z = (Math.random() - 0.5) * (length * 2);
+        if (p.position.x > halfW + 30) {
+          p.position.x = -halfW - 30;
+          p.position.y = Math.random() * (height * 2);
+          p.position.z = (Math.random() - 0.5) * (length * 3);
+          p.currentCpe = 0;
         }
       }
 
+      // Atualiza posição e escala na matriz
       dummy.position.copy(p.position);
       
-      // Orient the particle along the wind direction
-      dummy.lookAt(p.position.clone().add(dir));
-      dummy.rotateX(Math.PI / 2); // Cylinder is aligned along Y by default, rotate to face direction
+      // Aponta para a direção do movimento real
+      const moveVec = new THREE.Vector3(windDir.x + deflectX, deflectY, windDir.z + deflectZ).normalize();
+      dummy.lookAt(p.position.clone().add(moveVec));
+      dummy.rotateX(Math.PI / 2);
+      
+      // Estica a barrinha dependendo da velocidade (efeito blur)
+      dummy.scale.set(1, 1 + currentSpeed * 5, 1);
       
       dummy.updateMatrix();
       meshRef.current!.setMatrixAt(i, dummy.matrix);
+
+      // Atualiza Cor
+      if (p.currentCpe > 0) {
+        // Pressão (Quente: Vermelho -> Laranja)
+        colorObj.set('#ef4444').lerp(new THREE.Color('#fcd34d'), 1 - Math.min(1, p.currentCpe));
+      } else if (p.currentCpe < 0) {
+        // Sucção (Frio: Azul claro -> Azul escuro)
+        const intensity = Math.min(1, Math.abs(p.currentCpe));
+        colorObj.set('#38bdf8').lerp(new THREE.Color('#1e3a8a'), intensity);
+      } else {
+        // Neutro
+        colorObj.set('#cbd5e1');
+      }
+      meshRef.current!.setColorAt(i, colorObj);
     });
 
     meshRef.current.instanceMatrix.needsUpdate = true;
+    if (meshRef.current.instanceColor) {
+      meshRef.current.instanceColor.needsUpdate = true;
+    }
   });
 
   return (
     <instancedMesh ref={meshRef} args={[undefined, undefined, count]}>
-      {/* A simple arrow-like or dashed line geometry */}
-      <cylinderGeometry args={[0.02, 0.02, 1.5, 4]} />
+      <cylinderGeometry args={[0.04, 0.04, 1.5, 4]} />
       <meshBasicMaterial 
-        color="#a5f3fc" 
+        color="#ffffff"
         transparent 
-        opacity={0.6} 
+        opacity={0.8} 
         blending={THREE.AdditiveBlending}
         depthWrite={false}
       />